Redump - Revision history

Deterous at 08:07, 15 June 2026

2026-06-15T08:07:49Z

Deterous: moved Redump.org to Redump

2026-06-15T07:53:40Z

moved Redump.org to Redump

← Older revision

Revision as of 07:53, 15 June 2026

Darksabre76 at 23:33, 28 December 2025

2025-12-28T23:33:25Z

← Older revision		Revision as of 23:33, 28 December 2025
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	'''Why do I need special software to dump [x] media for Redump?'''		'''Why do I need special software to dump [x] media for Redump?'''

-	:The dumping programs that are we use are tailored to trying to get as much information out of a disc as possible. A lot of discs are even designed to make it harder to get an accurate copy. The primary dumping tools we support on desktop systems are '''Redumper''' and '''DiscImageCreator'''. Both have periodic official releases through their own GitHub repos as well as being included with the MPF frontend. Only official releases through one of these two sources are allowed for submission as we need some reasonable degree of confidence that the outputs are accurate. For systems that are not supported (e.g. some Linux distros or BSDs in general), please check with a staff member before submitting using a custom build.	+	:The dumping programs that are we use are tailored to trying to get as much information out of a disc as possible. A lot of discs are even designed to make it harder to get an accurate copy. The primary dumping tools we support on desktop systems are '''Redumper''' and '''DiscImageCreator'''. Both have periodic official releases through their own GitHub repos as well as being included with the MPF frontend. Only official releases through one of these two sources are allowed for submission as we need some reasonable degree of confidence that the outputs are accurate. For systems that are not supported (e.g. some Linux distros or BSDs in general), please check with a staff member before submitting using a custom build or an official build that has been modified. We trust users to be reasonably transparent about this to avoid having to overly-scrutinize all submissions.

	'''What is a pressed disc?'''		'''What is a pressed disc?'''

Darksabre76: /* Technical Questions */

2025-12-28T22:27:51Z

Technical Questions

← Older revision		Revision as of 22:27, 28 December 2025
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	'''Why do I need special software to dump [x] media for Redump?'''		'''Why do I need special software to dump [x] media for Redump?'''

-	:The dumping programs that are we use are tailored to trying to get as much information out of a disc as possible. A lot of discs are even designed to make it harder to get an accurate copy. The primary dumping tools we support on desktop systems are Redumper and DiscImageCreator. Both have periodic official releases through their own GitHub repos as well as being included with the MPF frontend. Only official releases through one of these two sources are allowed for submission as we need some reasonable degree of confidence that the outputs are accurate. For systems that are not supported (e.g. some Linux distros or BSDs in general), please check with a staff member before submitting using a custom build.	+	:The dumping programs that are we use are tailored to trying to get as much information out of a disc as possible. A lot of discs are even designed to make it harder to get an accurate copy. The primary dumping tools we support on desktop systems are '''Redumper''' and '''DiscImageCreator'''. Both have periodic official releases through their own GitHub repos as well as being included with the MPF frontend. Only official releases through one of these two sources are allowed for submission as we need some reasonable degree of confidence that the outputs are accurate. For systems that are not supported (e.g. some Linux distros or BSDs in general), please check with a staff member before submitting using a custom build.

	'''What is a pressed disc?'''		'''What is a pressed disc?'''

Darksabre76: /* Technical Questions */

2025-12-28T22:27:12Z

Technical Questions

← Older revision		Revision as of 22:27, 28 December 2025
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	:CDs, DVDs, GDs, NODs, UMDs, Blu-ray discs, etc. If it spins, is read by a laser and has digital game data on it; we want to preserve it.		:CDs, DVDs, GDs, NODs, UMDs, Blu-ray discs, etc. If it spins, is read by a laser and has digital game data on it; we want to preserve it.
		+	Redump

	'''Why do I need special hardware to dump [x] media for redump?'''		'''Why do I need special hardware to dump [x] media for redump?'''

	:Discs, particularly CD-ROMs, are somewhat complicated and have data on them that can't be read by just any drive or software, including data that is required for certain games to function properly (e.g. copy protected games). The drives we recommend are capable of reading more information than most standard drives, which helps us to preserve a more complete digital image of the media, for posterity. Additionally, the drives we've listed as compatible, have undergone significant testing by hundreds of contributors, over many years, with tens of thousands of discs, enabling us to provide reliable hashes and in many cases, verified hashes, which fulfills the main purpose of this project.		:Discs, particularly CD-ROMs, are somewhat complicated and have data on them that can't be read by just any drive or software, including data that is required for certain games to function properly (e.g. copy protected games). The drives we recommend are capable of reading more information than most standard drives, which helps us to preserve a more complete digital image of the media, for posterity. Additionally, the drives we've listed as compatible, have undergone significant testing by hundreds of contributors, over many years, with tens of thousands of discs, enabling us to provide reliable hashes and in many cases, verified hashes, which fulfills the main purpose of this project.
		+
		+	'''Why do I need special software to dump [x] media for Redump?'''
		+
		+	:The dumping programs that are we use are tailored to trying to get as much information out of a disc as possible. A lot of discs are even designed to make it harder to get an accurate copy. The primary dumping tools we support on desktop systems are Redumper and DiscImageCreator. Both have periodic official releases through their own GitHub repos as well as being included with the MPF frontend. Only official releases through one of these two sources are allowed for submission as we need some reasonable degree of confidence that the outputs are accurate. For systems that are not supported (e.g. some Linux distros or BSDs in general), please check with a staff member before submitting using a custom build.

	'''What is a pressed disc?'''		'''What is a pressed disc?'''

Sadikyo at 11:23, 11 June 2025

2025-06-11T11:23:30Z

← Older revision		Revision as of 11:23, 11 June 2025
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	:Burned recordable discs (CD-Rs, DVD-Rs, etc) are accepted as well when they contain prerelease content or if they were released in this form by their publisher. These still must be video game related in their content.		:Burned recordable discs (CD-Rs, DVD-Rs, etc) are accepted as well when they contain prerelease content or if they were released in this form by their publisher. These still must be video game related in their content.

-	:If you have any questions about whether your disc is eligible, please post your question in the [http://forum.redump.org/ forum].	+	:If you have any questions about whether your disc is eligible, please post your question in the [http://forum.redump.org/topic/63134/disc-eligibility-questions/ forum].

	'''What do you mean by "video game related?"'''		'''What do you mean by "video game related?"'''

Deterous at 05:27, 29 January 2025

2025-01-29T05:27:09Z

← Older revision		Revision as of 05:27, 29 January 2025
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	:"Pressed" discs are stamped out in a plastics-molding stamper. The data patterns, represented as a series of pits and lands, is permanently molded into the plastic during the stamping process. Basically, its the same process that was used to make vinyl records (and CD's, for that matter), just ramped up a few orders of magnitude in precision. After the plastic has been stamped, it then gets coated (via vacuum deposition) with a few-atoms-thick layer of reflective metal, and another layer of plastic is bonded onto the top. During playback, the laser's reflection angle is subtly altered depending on whether there's a pit or a land in front of the beam, which causes the reflection to hit or miss the detector. These hits and misses become a binary data pattern.		:"Pressed" discs are stamped out in a plastics-molding stamper. The data patterns, represented as a series of pits and lands, is permanently molded into the plastic during the stamping process. Basically, its the same process that was used to make vinyl records (and CD's, for that matter), just ramped up a few orders of magnitude in precision. After the plastic has been stamped, it then gets coated (via vacuum deposition) with a few-atoms-thick layer of reflective metal, and another layer of plastic is bonded onto the top. During playback, the laser's reflection angle is subtly altered depending on whether there's a pit or a land in front of the beam, which causes the reflection to hit or miss the detector. These hits and misses become a binary data pattern.
-
-	~~'''Why you split the tracks?'''~~
-
-	~~:wip~~
-
-	~~'''What is offset and why is it important?'''~~
-
-	~~:wip~~
-
-	~~'''Why dump at 2352 bytes per sector and not 2048 bytes?'''~~
-
-	~~:wip~~
-
-	~~'''Why don't you dump subchannels?'''~~
-
-	~~:wip~~

	'''Is it true that some data on a disc can't be accurately copied?'''		'''Is it true that some data on a disc can't be accurately copied?'''

Sadikyo at 15:03, 8 January 2025

2025-01-08T15:03:05Z

← Older revision		Revision as of 15:03, 8 January 2025
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	:Verifications are vital in verifying that the information in the database is accurate, and that a dump is reproduceable by another person using the same tools and methods. An existing dump could be erroneous due to a variety of factors, including user error, hardware and software issues, and more. Furthermore, even when someone is doing everything correctly and has adequate software and hardware, there is a chance that their dump could be incorrect, due to the way data sectors on a disc are read and validated (especially Compact Discs). In most cases, the data will be read and verified successfully, but the process of reading data is not infallible, so there are times when a second dump of the same disc could provide differing information. Verifications help to identify and correct some of these issues.		:Verifications are vital in verifying that the information in the database is accurate, and that a dump is reproduceable by another person using the same tools and methods. An existing dump could be erroneous due to a variety of factors, including user error, hardware and software issues, and more. Furthermore, even when someone is doing everything correctly and has adequate software and hardware, there is a chance that their dump could be incorrect, due to the way data sectors on a disc are read and validated (especially Compact Discs). In most cases, the data will be read and verified successfully, but the process of reading data is not infallible, so there are times when a second dump of the same disc could provide differing information. Verifications help to identify and correct some of these issues.

-	'''Does ~~redump~~ 'own' the content we contribute to the database?'''	+	'''Does Redump.org 'own' the content we contribute to the database?'''

-	:No, the metadata that is contributed to and stored on ~~redump~~, is considered publicly available information to be used however people see fit - whether you are a researcher, academic, organization, or simply an individual verifying the data for your own media.	+	:No, the metadata that is contributed to and stored on Redump.org, is considered publicly available information to be used however people see fit - whether you are a researcher, academic, organization, or simply an individual verifying the data for your own media.

	==Technical Questions==		==Technical Questions==

Sadikyo at 14:59, 8 January 2025

2025-01-08T14:59:00Z

← Older revision		Revision as of 14:59, 8 January 2025
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	'''Why are "verifications" necessary and/or helpful to the project? Isn't one dump good enough?'''		'''Why are "verifications" necessary and/or helpful to the project? Isn't one dump good enough?'''
	:Verifications are vital in verifying that the information in the database is accurate, and that a dump is reproduceable by another person using the same tools and methods. An existing dump could be erroneous due to a variety of factors, including user error, hardware and software issues, and more. Furthermore, even when someone is doing everything correctly and has adequate software and hardware, there is a chance that their dump could be incorrect, due to the way data sectors on a disc are read and validated (especially Compact Discs). In most cases, the data will be read and verified successfully, but the process of reading data is not infallible, so there are times when a second dump of the same disc could provide differing information. Verifications help to identify and correct some of these issues.		:Verifications are vital in verifying that the information in the database is accurate, and that a dump is reproduceable by another person using the same tools and methods. An existing dump could be erroneous due to a variety of factors, including user error, hardware and software issues, and more. Furthermore, even when someone is doing everything correctly and has adequate software and hardware, there is a chance that their dump could be incorrect, due to the way data sectors on a disc are read and validated (especially Compact Discs). In most cases, the data will be read and verified successfully, but the process of reading data is not infallible, so there are times when a second dump of the same disc could provide differing information. Verifications help to identify and correct some of these issues.
		+
		+	'''Does redump 'own' the content we contribute to the database?'''
		+
		+	:No, the metadata that is contributed to and stored on redump, is considered publicly available information to be used however people see fit - whether you are a researcher, academic, organization, or simply an individual verifying the data for your own media.

	==Technical Questions==		==Technical Questions==

Sadikyo: /* Overview */

2023-05-08T01:19:55Z

Overview

← Older revision		Revision as of 01:19, 8 May 2023
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	:Most other projects encourage you to backup your discs in such a way that data is lost. Our methods of preservation try to backup every bit of data contained on the disc. In this way your dump should be as close to a 1:1 copy as possible. More information about our methods is covered in the '''Technical''' section below.		:Most other projects encourage you to backup your discs in such a way that data is lost. Our methods of preservation try to backup every bit of data contained on the disc. In this way your dump should be as close to a 1:1 copy as possible. More information about our methods is covered in the '''Technical''' section below.
		+
		+	'''Why are "verifications" necessary and/or helpful to the project? Isn't one dump good enough?'''
		+	:Verifications are vital in verifying that the information in the database is accurate, and that a dump is reproduceable by another person using the same tools and methods. An existing dump could be erroneous due to a variety of factors, including user error, hardware and software issues, and more. Furthermore, even when someone is doing everything correctly and has adequate software and hardware, there is a chance that their dump could be incorrect, due to the way data sectors on a disc are read and validated (especially Compact Discs). In most cases, the data will be read and verified successfully, but the process of reading data is not infallible, so there are times when a second dump of the same disc could provide differing information. Verifications help to identify and correct some of these issues.

	==Technical Questions==		==Technical Questions==

← Older revision		Revision as of 08:07, 15 June 2026
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	<div class="textblock" style="background: #febaba; padding: 10px;">		<div class="textblock" style="background: #febaba; padding: 10px;">
-	<span style="font-size: 20px; font-weight: bold;">Please read the Redump~~.org~~ [[Redump~~.org~~: Disclaimer\|disclaimer]].	+	<span style="font-size: 20px; font-weight: bold;">Please read the Redump [[Redump: Disclaimer\|disclaimer]].
	</span>		</span>
	</div>		</div>
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	==Overview==		==Overview==

-	'''What is Redump~~.org~~ and what is your goal?'''	+	'''What is Redump and what is your goal?'''

-	:[http://redump.org/ Redump~~.org~~] is a disc preservation [http://redump.org/discs/sort/added/dir/desc database] and internet community dedicated to collecting precise and accurate information about every video game ever released on optical media of any system. The goal is to make '''blueprints''' of the data on console and computer game discs. Redump~~.org~~ also provides [http://wiki.redump.org/index.php?title=Dumping_Guides guides] to ensure the dumps are correctly done. Users of the website who follow the guides correctly are encouraged to share their results to help build the database. Multiple dumps of games with the same serial number by different people are collected to ensure the same results are gathered, which help correct any incorrect dumps in the database as well as to help recognize alternate versions of the same game.	+	:[http://redump.org/ Redump] is a disc preservation [http://redump.org/discs/sort/added/dir/desc database] and internet community dedicated to collecting precise and accurate information about every video game ever released on optical media of any system. The goal is to make '''blueprints''' of the data on console and computer game discs. Redump also provides [http://wiki.redump.org/index.php?title=Dumping_Guides guides] to ensure the dumps are correctly done. Users of the website who follow the guides correctly are encouraged to share their results to help build the database. Multiple dumps of games with the same serial number by different people are collected to ensure the same results are gathered, which help correct any incorrect dumps in the database as well as to help recognize alternate versions of the same game.

	'''Why is it called Redump?'''		'''Why is it called Redump?'''
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	'''Isn't dumping games illegal?'''		'''Isn't dumping games illegal?'''

-	:Redump~~.org~~ does not provide copyrighted material nor do we condone software piracy. Please read the [http://redump.org/ Redump~~.org~~] [[Redump~~.org~~: Disclaimer\|disclaimer]]. You will need to consult your country's laws to confirm whether or not backing up the data on your discs is legal. However, "sharing" copyrighted material is definitely a crime and will not be tolerated here. If you want a game; buy it. Video game developers deserve money for their hard work.	+	:Redump does not provide copyrighted material nor do we condone software piracy. Please read the [http://redump.org/ Redump] [[Redump: Disclaimer\|disclaimer]]. You will need to consult your country's laws to confirm whether or not backing up the data on your discs is legal. However, "sharing" copyrighted material is definitely a crime and will not be tolerated here. If you want a game; buy it. Video game developers deserve money for their hard work.

	'''What do you provide on this site?'''		'''What do you provide on this site?'''
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	'''What's the purpose of this information?'''		'''What's the purpose of this information?'''

-	:You can use this information in the [http://redump.org/discs/sort/added/dir/desc database] so that you can compare a backup you've made to a backup someone else has made of the same disc, even with different PC configurations and drives. This comparison will verify that you've dumped your disc accurately and it's not faulty. The backup you've created can then be archived in case your disc is damaged in the future. We give you information you can use to preserve your games and any information you give us helps others to preserve their games as well. Giving back to [http://redump.org/ Redump~~.org~~] is covered in more detail in the ''Contributing'' section below.	+	:You can use this information in the [http://redump.org/discs/sort/added/dir/desc database] so that you can compare a backup you've made to a backup someone else has made of the same disc, even with different PC configurations and drives. This comparison will verify that you've dumped your disc accurately and it's not faulty. The backup you've created can then be archived in case your disc is damaged in the future. We give you information you can use to preserve your games and any information you give us helps others to preserve their games as well. Giving back to [http://redump.org/ Redump] is covered in more detail in the ''Contributing'' section below.

	'''Why preserve game discs?'''		'''Why preserve game discs?'''
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	:Nothing lasts forever. Optical media is especially susceptible to damage in the form of scratches, cracks, heat, sunlight, etc. Preserving these discs now will ensure that future generations aren't deprived of our video game history.		:Nothing lasts forever. Optical media is especially susceptible to damage in the form of scratches, cracks, heat, sunlight, etc. Preserving these discs now will ensure that future generations aren't deprived of our video game history.

-	'''What sets Redump~~.org~~ apart from other projects that have similar goals?'''	+	'''What sets Redump apart from other projects that have similar goals?'''

	:Most other projects encourage you to backup your discs in such a way that data is lost. Our methods of preservation try to backup every bit of data contained on the disc. In this way your dump should be as close to a 1:1 copy as possible. More information about our methods is covered in the '''Technical''' section below.		:Most other projects encourage you to backup your discs in such a way that data is lost. Our methods of preservation try to backup every bit of data contained on the disc. In this way your dump should be as close to a 1:1 copy as possible. More information about our methods is covered in the '''Technical''' section below.
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	:Verifications are vital in verifying that the information in the database is accurate, and that a dump is reproduceable by another person using the same tools and methods. An existing dump could be erroneous due to a variety of factors, including user error, hardware and software issues, and more. Furthermore, even when someone is doing everything correctly and has adequate software and hardware, there is a chance that their dump could be incorrect, due to the way data sectors on a disc are read and validated (especially Compact Discs). In most cases, the data will be read and verified successfully, but the process of reading data is not infallible, so there are times when a second dump of the same disc could provide differing information. Verifications help to identify and correct some of these issues.		:Verifications are vital in verifying that the information in the database is accurate, and that a dump is reproduceable by another person using the same tools and methods. An existing dump could be erroneous due to a variety of factors, including user error, hardware and software issues, and more. Furthermore, even when someone is doing everything correctly and has adequate software and hardware, there is a chance that their dump could be incorrect, due to the way data sectors on a disc are read and validated (especially Compact Discs). In most cases, the data will be read and verified successfully, but the process of reading data is not infallible, so there are times when a second dump of the same disc could provide differing information. Verifications help to identify and correct some of these issues.

-	'''Does Redump~~.org~~ 'own' the content we contribute to the database?'''	+	'''Does Redump 'own' the content we contribute to the database?'''

-	:No, the metadata that is contributed to and stored on Redump~~.org~~, is considered publicly available information to be used however people see fit - whether you are a researcher, academic, organization, or simply an individual verifying the data for your own media.	+	:No, the metadata that is contributed to and stored on Redump, is considered publicly available information to be used however people see fit - whether you are a researcher, academic, organization, or simply an individual verifying the data for your own media.

	==Technical Questions==		==Technical Questions==
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	:If you have already dumped your disc:		:If you have already dumped your disc:

-	* The best way to find out if your disc is in the database, is to use the "Quick search" feature, which is in the upper-right portion of [http://redump.org/ redump~~.org~~]. Enter the MD5 or SHA-1 hash information in your search, and if the disc is in the database, it will populate that page.	+	* The best way to find out if your disc is in the database, is to use the "Quick search" feature, which is in the upper-right portion of [http://redump.org/ redump]. Enter the MD5 or SHA-1 hash information in your search, and if the disc is in the database, it will populate that page.

	:If you have not yet dumped your disc:		:If you have not yet dumped your disc:

-	* You can check the [http://wiki.redump.org/index.php?title=Discs_not_yet_dumped missing lists] on our wiki to see if your disc is listed. However, since the missing lists aren't always 100% up-to-date, we recommend always searching for your disc using the "Quick search" feature on [http://redump.org/ redump~~.org~~]. You can search by Title, Foreign title, or Disc Serial to see if the disc is listed. Please note: even if you get a result, it is always worth dumping your specific disc to see if it matches any or is a revision / new disc.	+	* You can check the [http://wiki.redump.org/index.php?title=Discs_not_yet_dumped missing lists] on our wiki to see if your disc is listed. However, since the missing lists aren't always 100% up-to-date, we recommend always searching for your disc using the "Quick search" feature on [http://redump.org/ redump]. You can search by Title, Foreign title, or Disc Serial to see if the disc is listed. Please note: even if you get a result, it is always worth dumping your specific disc to see if it matches any or is a revision / new disc.

	==Contact==		==Contact==
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	'''Forum'''		'''Forum'''

-	:The [http://forum.redump.org/ forum] is the heart of this community. Browsing the various sections and reading some of the posts will give you an idea of how this site works. The most up to date news, discussions, guides and dumps can be found on the [http://forum.redump.org/ forum]. It can also be a great source for answers to questions not found in the [http://redump.org/ Redump~~.org~~] [http://wiki.redump.org/index.php?title=Main_Page wiki].	+	:The [http://forum.redump.org/ forum] is the heart of this community. Browsing the various sections and reading some of the posts will give you an idea of how this site works. The most up to date news, discussions, guides and dumps can be found on the [http://forum.redump.org/ forum]. It can also be a great source for answers to questions not found in the [http://redump.org/ Redump] [http://wiki.redump.org/index.php?title=Main_Page wiki].

	'''How do I reply to a topic or create a new topic in the forum?'''		'''How do I reply to a topic or create a new topic in the forum?'''

-	:The first step is to [http://forum.redump.org/register/ register] for a user name at the [http://redump.org/ Redump~~.org~~] [http://forum.redump.org/ forum]. After you've completed the registration process you can [http://forum.redump.org/login/ login] with the user name you've chosen. To reply to an existing topic, click the name of the topic in which you want to make your reply. Then click the "Post reply" link in the upper right corner. Type your message and click the "Submit reply" button. To create a new topic, click the name of a section in the forum in which you'd like your post to appear. Then click the "Post new topic" link in the upper right corner. Type your message and click the "Submit topic" button. The "Post reply" and "Post new topic" links will only appear when you've registered and logged in with your [http://redump.org/ Redump~~.org~~] user name.	+	:The first step is to [http://forum.redump.org/register/ register] for a user name at the [http://redump.org/ Redump] [http://forum.redump.org/ forum]. After you've completed the registration process you can [http://forum.redump.org/login/ login] with the user name you've chosen. To reply to an existing topic, click the name of the topic in which you want to make your reply. Then click the "Post reply" link in the upper right corner. Type your message and click the "Submit reply" button. To create a new topic, click the name of a section in the forum in which you'd like your post to appear. Then click the "Post new topic" link in the upper right corner. Type your message and click the "Submit topic" button. The "Post reply" and "Post new topic" links will only appear when you've registered and logged in with your [http://redump.org/ Redump] user name.

	'''How do I search the forum?'''		'''How do I search the forum?'''