I have a few questions about subchannel data:
What exacly is contained in the subchannel data of psx games?
Is it game data or just copy protection data?
What are the consequences of backing up my games using a format that doesn't preserve subchannel like bin/cue?
Is it possible that they won't run anymore in a modded ps1/ps2 machine?
Only "protection data".
*.bin support preserving subchannel data, even full subchannel (from Q up to W). Of course burner must support RAW-DAO96 and bruning software must support it.
I.e really good soft like ImgBurn don't support it. For such task i recommend Alcohol 52% (or 120%), CloneCD and CDRWin (from GoldenHawk).
thanks for the reply!
So that means that only copy protected games contain subchannel data?
Over time I used different programs to create image files of my psx games, so I lost track of what programs I used for each file, so how can I know if a certain bin/cue image contains the subchannel data?
Most (if not all) PSX games are protected by Libcrypt and subchannel data for them are crucial. I don't know what method are you using to boot games but even if you have modchip with fw which fooling optical drive, it's good idea to have 1:1 copy.
If you are not sure, you can rip your games once again.
To my mind come only one games which i'am 100% sure it's "libcrypted" and have anti-modchips protections. FF8 (PAL, NTSC/U are clean).
I own a sensor modded pal slim PS2 with FMCB and I use uLaunchelf with disk control to boot my psx backups.
I've only recently became aware of the copy protection in psx games but most of my backups work, the only ones so far that are giving me trouble are dino crisis 1, wipeout, wipeout 2097 and wipeout 3 SE. I've tried multiple burns with different media with no results...
Is it possible that they do not work because the image files I created do not contain the required subchannel data? Is there any other possible reason why these backups don't work?