this might be a stupid question. to be honest, i'm not quite sure yet. i've been exploring psx emulation for a few years... and i've come across all sorts of different extensions for image files... .iso, .bin, .img... and i know all about the .cue and .ccd files, and about subchannel files, etc... but a few games that i obtained earlier were labeled as ECM files, which i've never come across. to be more precise, it was labled "nameofillegallydownloadedgamehere.img.ecm" can anyone tell me what they're for? because it doesn't load in ePSXe, PSXeven, or pSX. I had a small hunch that it might have something to do with a PSX to PSP conversion file or something, but it was obtained with quite a few other regular PSX games... plus the file came with a .ccd and a .sub like a normal .img file sometimes will. I tried to convert it all to an .iso and a .bin and neither of those worked either. any information?