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Compression: PPSSPP .chd compression broken with CHDMAN use .cso

Open Lazorne opened this issue 2 years ago • 4 comments

User Maddo on Discord reported: I wanted to point out that PSP compression to chd is currently buggy and there is some currently undefined behaviours with CHDs created using createcd instead of createdvd

PPSSPP Issue: https://github.com/hrydgard/ppsspp/issues/18798

Maddo suggested target .cso instead for PSP with maxcso maxcso

Anyhow as chd is bugging we should disable it

Lazorne avatar Feb 22 '24 11:02 Lazorne

Also wrote: createcd leads to skipping animations and such, so yeah, chd work but absolutely use createdvd

XargonWan avatar Feb 24 '24 16:02 XargonWan

Either way this will need an updated tool. The version of chdman we currently package doesn't support createdvd, and maxcso seems like a preferred format for PSP anyway.

icenine451 avatar Feb 27 '24 14:02 icenine451

Looks like it has changed with the lastest MAME versions as well according to the above issue on PPSSPP since the January update. So if we update chdman and use createdvd it should work.

Lazorne avatar Mar 10 '24 06:03 Lazorne

I can confirm this to be the case, PPSSPP 1.17.1 works fine with chdman 0.262 and createdvd option. createcd makes a few animations skip, making the game feel stuttery. Reached out to the developer on discord and he confirmed that createdvd is bugfree and works as intended.

maddovr avatar Mar 10 '24 11:03 maddovr