Not exactly emulation-related, but close enough.
I recently found out that if you stick a PSX disc (at least, all the Final Fantasy VII discs) in a computer and look at the file structure you can see windows folders and various files. There's one folder on FF VII disc 1 entitled "Movies", which has, in addition to a bunch of Notepad files with gibberish text, several Quicktime movies with the .mov extention. I assumed these were the high-quality graphics cutscenes, so I tried to open them. Quicktime, however, would not recognize the file type. Is there a way to view these?