Just one thing,... Those folders are there, to 'set' the disc-type used for the emulation, right?
Why can't OPL patch the checks in the Main-ELF (right before in-game 'hook-up'), if there are any? I guess there could be compatibility-problems, if a PS2-CD-Game uses multiple ELFs...
Also,... Isn't the emulation somewhat incorrect if it uses the wrong data-size per sector?
What happens if a game requests the needed data 'per sector', instead of (through) the filesystem-layer?
Are there any PS2-CD-Games which use multiple tracks, such as Audio-Tracks (there are PS1-Games, but I'm not sure about PS2-CD-Games)?
PS2 V7/DMS3 V2 (FW:2.4b7); Seagate Baracuda 200GB
PS2 V7/CC1.0 (FW:34 hacked v2 BM:2.1.6); Maxtor DiamondMAX9 PLUS 160GB
PS2 SCPH-30004R; NoMod+NoLaser
3xSony MC 8MB
MAX/Datel 16MB with Boot-CD
Custom FMCB 1.8b+ Beta-Build, my AIO 0.5, Sony&xRhino-Linux