I've been experiencing the same problem, when Bugenhagen places the key of the ancients the game crashes. I've been playing on ePSXe, but then I tried on PSX and PSXeven emulators, but nothing worked. I tried mounting the image with daemon tools but I can't seem to figure it out, as when I select "Run CDROM" nothing works. Could I possibly upload my save file and someone just gets me past the video?