CodeLok / CopyLok

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Revision as of 09:46, 28 April 2025

Comes both with or without rings. A bug in the Plextor firmware means any dump of either version made using a Plextor and any tool is likely to be bad. Incorrectly reporting the total number of errors.

For example, when dumping http://redump.org/disc/53929/ with ringless Copylok using either DIC or redumper and a Plextor drive, the error count is incorrectly reported as 1516, exactly double the correct 758 errors.

An incorrect _c2Error log looks as follows:
LBA[002312, 0x00908] Detected C2 error 380 bit
LBA[002313, 0x00909] Detected C2 error 20 bit

A correct _c2Error log looks as follows:
LBA[002312, 0x00908] Detected C2 error 300 bit
LBA[002322, 0x00912] Detected C2 error 300 bit

These discs can be correctly dumped using a non-Plextor drive and any of the following tools:

• DIC (using an ASUS or compatible firmware drive)
• redumper (Same as above)

Ringed Copylok meanwhile is supposed to have double errors (for example http://redump.org/disc/107930/). A correct Redumper dump of these will look like this.
[LBA: 2316] C2 error (bits: 1354)
[LBA: 2317] C2 error (bits: 1022)

This has so far only been found on a single drive though (ASUS DRW-24D5MT 1.00) as most other drives, including Plextor and JB8 drives will have these kind of errors in their logs.
LBA: 2315] subcode desync (shift: -1)
[LBA: 2316] C2 error (bits: 440)
[LBA: 2317] C2 error (bits: 2088)
[LBA: 2326] C2 error (bits: 15
[LBA: 2327] C2 error (bits: 1481
[LBA: 2328] C2 error (bits: 1956
[LBA: 2342] C2 error (bits: 1022
[LBA: 2329] C2 error (bits: 308
[LBA: 2331] subcode desync (shift: -2)
[LBA: 2342] C2 error (bits: 608)

Until more testing is done. These discs have to be dumped using:

• CloneCD (note: may require fixing with CDMage and manual replacement of error sectors with 0x55)