Radio Stations: Heavily compressed using Atrac3+ codec at 64 kbps. In-game dialogue used 4-bit ADPCM at 8,000 Hz.
File Sizes: The entire UMD (1.8 GB) was packed with redundant asset data to speed up disc seeking.
For gameplay on original hardware: PSP assets are optimized for smooth handheld performance. PS2 assets offer better audio and reflections but inconsistent framerate.
For modding and restoration: Extract audio assets from the PS2 version. Extract vehicle models from the PSP version if you need low-poly bases for custom mods.
For emulation: Use PPSSPP with an HD texture pack to surpass both original releases.
For a more comprehensive gameplay experience, play the PS2 version of Grand Theft Auto: Vice City Stories.
For a portable and still enjoyable experience, the PSP version is a good option.
5. Geometry, LODs, and models
PS2 version
For preservationists, the is the definitive asset set for audio and environment art, while the PSP version is historically significant for its compression techniques.
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