, only used about 100-130MB of actual data, with the rest of the 1.1GB GD-ROM filled by "dummy files" to keep the laser reading from the faster outer edge of the disc. Removing these was the easiest way to "compress" games. : For massive games like or
For Sega Dreamcast enthusiasts, "highly compressed" usually refers to converting massive images (GDI) into efficient, space-saving formats like CHD (Compressed Hunks of Data) . Since the original Dreamcast discs held up to dreamcast games highly compressed
You will find websites boasting "Marvel vs. Capcom 2 – 30MB!" or "Soul Calibur – 50MB!" Be very careful. , only used about 100-130MB of actual data,
The compression techniques used were highly dependent on the game engine and the tools available to the developers. Some common strategies included: Since the original Dreamcast discs held up to
A single CHD file that runs perfectly in Flycast or RetroArch.
This article is for educational purposes. We do not condone piracy. You should only download or compress games you physically own. Emulation of backup copies is protected under fair use in many jurisdictions, but please check your local laws.