@aybe :

one question : is Wipeout 3 simply using a container (PBP) and then the inside is files similar to WO1/WOXL ? Or is the inside of PBP something totally different from what we have seen before ?
I'm not talking about common PSX files (like TIM textures) but rather wipeout specific track formats (like TRS/TRV/TRF, ...)