I heard that PlayStation images can be compressed to CHD like "MAME roms" or disc images for Dreamcast. I checked if chdman can compress and decompress without losing any data and my tests proofs it is ok. CHD compressing is long but it have a way faster decompression and better compression ratio than PBP on "stage 9". Perfect! But it doesn't work for me... In example, I got output "Crash Team Racing (SCES-02105).chd" file so I created new playlist and put it: Code: /media/RetroParch/games/PSX/Crash Team Racing (SCES-02105).chd Crash Team Racing (SCES-02105) /media/bleemsync/opt/retroarch/.config/retroarch/cores/pcsx_rearmed_libretro.so PCSX ReARMed 00000000|crc Sony PlayStation.lpl RA seen the playlist but when I trying launch this game, I got error (I don't remember what exactly but suggesting the core cannot load it, instead of file not find). When I'm trying launch it by hand, using load content, it force me to use Dreamcast or SegaCD cores... When I use it as *.bin/*.cue (putting in playlist directly to BIN or CUE pointing to this *.bin, I was thinking that I could cheat this dump bastard ) I getting the same error as before. And which frustrating me, many peoples said it works for them. So how? I'm using BleemSynch with RetroArch "addon".