The PlayStation 2 utilized two primary physical media formats: Compact Discs (CD) and Digital Versatile Discs (DVD). A standard single-layer DVD can hold approximately 4.7GB of data, with many "heavy" games like Grand Theft Auto: San Andreas
: A quiz game that fits in just 62MB .
Popularized by the PSP community and adapted for PS2 via software like GZIP (.gz): Highly Compressed Ps2 Games Under 100mb