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This page outlines the standard format that Sony uses to serialize all PlayStation and related discs. In general, the format is four letters followed by five digits, sometimes displayed with a hyphen or space between.
These serials likely originated from industry standard part numbers (規格品番) which are given to media such as CDs and DVDs in Japan as per the Recording Industry Association of Japan's RIS504 standard

NOTE: This page is a WIP

Contents 1 Japan/Asia 1.1 Retail Serials (S_P_) 1.1.1 SCPS 1.1.2 SCPM 1.1.3 SIPS 1.1.4 SLPS 1.1.5 SLPM 1.2 Multimedia Game Serials (E_P_) 1.2.1 ESPM 1.3 Internal/Not for Sale Serials (P_P_) 1.3.1 PCPD 1.3.2 PAPX 1.3.3 PBPX 1.3.4 PCPX 1.3.5 PDPX 1.3.6 PEPX 1.3.7 PTPX 1.3.8 PUPX

Japan/Asia

Retail Serials (S_P_)

SCPS

First Party Discs:

10xxx - Japan PS1 CD original releases
110xx - Japan PS2 CD original releases
15xxx - Japan PS2 DVD-5 original releases
170xx - Japan PS2 DVD-9 original releases
175xx - Japan PS2 DVD-5 Linux release discs
180xx - Japan PS1 Hardware Bundles (e.g. Controller Bundle)
190xx - Japan PS1 PlayStation Comic series
1910x - Japan PS2 CD "PlayStation the Best" re-releases
1915x - Japan PS2 CD P"layStation the Best" re-releases
192xx - Japan PS2 DVD-5 "PlayStation the Best" re-releases
1925x - Japan PS2 DVD-9 "PlayStation the Best" re-releases
193xx - Japan PS2 DVD-5 "PlayStation the Best" re-releases
40xxx - Japan PS1 EPS Series (Music discs)
45xxx - Asian PS1 CD original releases
460xx - Korea PS1 CD original releases
510xx - Asian PS2 CD original releases
550xx - Asian PS2 DVD-5 original releases
559xx - Asian PS2 DVD-9 original releases
560xx - Korea PS2 DVD-5 original releases
7200x - Japan PS2 DVD-5 "Mega Hits" re-releases
91xxx - Japan PS1 CD "PlayStation the Best" and "PSone Books" re-releases

SCPM

First Party Bundled/Not-For-Sale Discs

850xx (001-006)
851xx (001 only) - McDonalds Bundle
853xx (001-004)

SIPS

International (Non-Japan) developed games ported and published by Sony for the Japan region

600xx (001-29)

Missing:

09: MLB Pennant Race, released as PAPX-90008 ?
13: Adidas Power Soccer '97, Unreleased in Japan ?
25: C.A.R.T. World Series	(4948872600255), Unreleased in Japan ?
26: Fire Panic, released as SCPS-10055 ?
29: Jet Moto '98, released as SCPS-10063 ?
Unknown: 14, 17, 24, 28, presumably cancelled

SLPS

Third Party Discs

0xxxx - Original (0001-03581) -- CHECK
91xxx - Rerelease (001-529) -- CHECK

SLPM

Third Party Discs

80xxx - Original (001-643) -- CHECK
84xxx - Special? (002-023) -- CHECK, 001 missing
86xxx - ? (001-999) -- CHECK
87xxx - ? (001-423) -- CHECK
89xxx - Bookstore/Special (001-010)

Multimedia Game Serials (E_P_)

ESPM

Unknown why E prefix

700xx: (001-003 only)

Internal/Not for Sale Serials (P_P_)

PCPD

Only one PCPD disc is known, an 8cm MiniCD in the first PlayStation Club pre-launch member benefit issue.

995xx: 99501 only

PAPX

90xxx: (001-110) -- CHECK

Other PAPX Serials (not PS1 discs):

902xx: PS2 (201-237) -- 237 is a PC disc, 213-214 are PS2 discs
903xx: PS2 (330 only) -- CHECK
905xx: PS2(501-524) -- CHECK
96xxx: DVD-Video (509, 566, 569, 585)
98xxx: DVD-Video (504 only)

PBPX

950xx: (001-013) -- 012 unknown

Other PBPX serials (not PS1 discs):

952xx: PS2 utility discs (201-251)
955xx: PS2 discs (501-525)
956xx: PS2 bundle (601 only)

PCPX

960xx: (003-202) -- 127, 145, 202 confirmed

Other PCPX serials (not PS1 discs):

001, 002, 020 are VHS tapes
004, 029-031, 040, 047, 056, 057, 059-062, 065-066, 069, 071-074, 077-079, 086, 089, 097, 099-100, 102, 106-107, 109, 111, 122, 194, 200 are unknown
209, 211, 212, 213 are Audio-CDs released after PS1 lifetime
96xxx: PS2 and DVD-Video (301-328) -- CHECK -- 302, 330, 603, 627 confirmed PS2
	DVD-Video: 501, 511, 513, 515, 519, 548, 556, 570, 698, 777, 778, 781)
98xxx: PS2 and DVD-Video (DVD-Video: 003, 004, 011, 017, 019, 021, 041, 042) -- CHECK -- 017, 041, 042 confirmed PS2

PDPX

No known PS1 service discs use the PDPX prefix.

PDPX-99109 is a PS2 CD.

PEPX

94xxx (001-?)

These service discs are printed and manufactured in Japan but intended for use on PAL-region consoles. 94009 is in redump, 94001 and 94002 are also known to exist.

PEPX-10011 is a PS2 CD.

PTPX

97xxx: (001-012)

These services discs are only known to be used on Japan-region consoles. 97001 is in redump, 97011 and 97012 are also known to exist.

PUPX

93xxx: (001-?)

These service discs are printed and manufactured in Japan but intended for use on USA-region consoles. 93008 and 93010 are in redump, 93001 and 93002 are also known to exist.

PUPX-93033 is a PS2 CD.