—they are in "Mode 2" CD-ROM XA. If you see "VCD" files in an emulation context today, you might actually be looking for , which are a high-efficiency compression format used by emulators to save space while keeping the game data intact. Are you looking to play VCD movies on a specific console, or are you trying to compress game files for an emulator?
However, in the context of the PS1, the term "VCD" became a misnomer. It did not mean the console was reading movie discs. Instead, it was a marketing term used by pirates to sell backups.
