Improve PS1/PS2 region detection #171

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claunia · 2026-01-29T16:11:04Z

claunia commented

2026-01-29 16:11:04 +00:00

Originally created by @Landcross on GitHub (Jan 27, 2020).

Originally assigned to: @mnadareski on GitHub.

Recently this issue was incorporated and closed: https://github.com/SabreTools/DICUI/issues/175 with commit cb39599a46

But the logic can be improved. Quite a few serial types are not included, and a bunch of serial types that are included have no reason to be.

It's probably easier to look at the third letter: A = Asia, C = China, E = Europe (any specific region unknown), K = Korea, P = Japan, U = USA. Except when the id starts with a P. Then it's very different, but those are not very common anyway.

pbgp, czp2, hsn and gn can be removed anyway, afaik those are only packaging serials.

Originally created by @Landcross on GitHub (Jan 27, 2020). Originally assigned to: @mnadareski on GitHub. Recently this issue was incorporated and closed: https://github.com/SabreTools/DICUI/issues/175 with commit https://github.com/SabreTools/DICUI/commit/cb39599a46f50e67a64d2f420bc1c00ba1cd25e7 But the logic can be improved. Quite a few serial types are not included, and a bunch of serial types that are included have no reason to be. It's probably easier to look at the third letter: A = Asia, C = China, E = Europe (any specific region unknown), K = Korea, P = Japan, U = USA. Except when the id starts with a P. Then it's very different, but those are not very common anyway. pbgp, czp2, hsn and gn can be removed anyway, afaik those are only packaging serials.

claunia closed this issue

2026-01-29 16:11:04 +00:00

claunia commented

2026-01-29 16:11:04 +00:00

@mnadareski commented on GitHub (Jan 27, 2020):

Do you mind clarifying for the P cases? Or if you happen to have a link that describes this further I'd appreciate it

@mnadareski commented on GitHub (Jan 27, 2020): Do you mind clarifying for the `P` cases? Or if you happen to have a link that describes this further I'd appreciate it

claunia commented

2026-01-29 16:11:04 +00:00

@Landcross commented on GitHub (Jan 27, 2020):

The P serials can be looked up on Redump, PAPX, PBPX, PCPX, PDPX and PEPX. PAPX and PXPC can somewhat be assumed to be Japanese, but the other ones. I doubt it's worth making a logic for those because it's either guesswork or it won't even barely be used anyway.

@Landcross commented on GitHub (Jan 27, 2020): The P serials can be looked up on Redump, PAPX, PBPX, PCPX, PDPX and PEPX. PAPX and PXPC can somewhat be assumed to be Japanese, but the other ones. I doubt it's worth making a logic for those because it's either guesswork or it won't even barely be used anyway.

claunia commented

2026-01-29 16:11:05 +00:00

@RibShark commented on GitHub (Jan 27, 2020):

J can sometimes also be used for Korea (and maybe other asian discs too?)
Not really something that can be useful for redump, but 2nd character can be C for Sony published software (occasionally I in Japan), and L for 3rd party software. 4th character is usually S for most full games, D for demos and M for Japanese/Asian titles that do not use Sony's own distribution network.

@RibShark commented on GitHub (Jan 27, 2020): `J` can sometimes also be used for Korea (and maybe other asian discs too?) Not really something that can be useful for redump, but 2nd character can be `C` for Sony published software (occasionally `I` in Japan), and `L` for 3rd party software. 4th character is usually `S` for most full games, `D` for demos and `M` for Japanese/Asian titles that do not use Sony's own distribution network.

claunia commented

2026-01-29 16:11:06 +00:00

@mnadareski commented on GitHub (Jan 27, 2020):

Some of that other information may be useful to set the disc type (such as Game or Demo). I'll have to look a little further into the P* serials before determining if those are worthwhile to add in the check. Definitely have to make sure the first character is S in the serial before trying to get the region from it, at the very least.

@mnadareski commented on GitHub (Jan 27, 2020): Some of that other information may be useful to set the disc type (such as Game or Demo). I'll have to look a little further into the `P*` serials before determining if those are worthwhile to add in the check. Definitely have to make sure the first character is `S` in the serial before trying to get the region from it, at the very least.

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Reference: SabreTools/MPF#171