The original PlayStation 1 CD-ROM format capped usable data storage at roughly 650 to 700 Megabytes. Managing this space efficiently was critical for delivering the game's groundbreaking cinematic presentation. Pre-Rendered Backgrounds
Digital archivers use Redump or No-Intro databases to verify the cryptographic hash of an extracted ISO file against the original retail "-USA- -Disc 1-" pressing to ensure data integrity. Resident Evil -USA- -Disc 1-