Several Dreamcast games were notably compressed to fit the 1 GB capacity of the GD-ROM format. This was particularly evident in games with extensive 3D graphics, detailed textures, and complex game worlds. Here are a few examples:
The compression techniques used were highly dependent on the game engine and the tools available to the developers. Some common strategies included: dreamcast games highly compressed
| Format | Use Case | Average Size | Quality | |--------|----------|--------------|---------| | .CDI (overburned) | Burn to 80min CD | 700MB | Original | | .CHD (lossless) | Emulation (Redream, Flycast) | 30-50% of GDI | Perfect | | .DAT (Atomiswave conversions) | Low-spec emulation | 50-200MB | Reduced | | Custom “Rip” packs | Handhelds (PSP/Vita, Android) | 100-500MB | Varies | Several Dreamcast games were notably compressed to fit