A classic Windows utility for converting PS1 games into the multi-disc PBP format.

: Original PSX discs are roughly 650MB. Compression can often reduce this to 100MB–300MB, especially for games that don't rely heavily on FMV (Full Motion Video). Faster Downloads

: Less common for PSX but sometimes used, these are compressed ISO formats often associated with PSP or PS2 games.

The fundamental difference between the two formats lies in how they handle different types of data. PS1 discs contain a mixture of program data and CD-quality audio tracks.

At its core, high compression for PSX games isn't just about "zipping" a file. It involves specialized formats and techniques:

was originally created by the MAME (Multiple Arcade Machine Emulator) project as a way to preserve exact copies of CD-ROM games in a compressed, manageable format. The format treats a game disc as a CD image and applies smart, lossless compression to every part of it. PBP , on the other hand, was developed by Sony for the PlayStation Portable (PSP) to allow PS1 games to run on its portable hardware via the built-in emulator.

For those who wish to convert their own legally obtained disc images, the process is straightforward.