Common "fixes" included in modern repacks like DODI's for the original 2001 version include: Widescreen Fix:

Despite containing the full game and fixes, the installer size is significantly smaller than the uncompressed original files, saving bandwidth and disk space.

Despite its ambitions, the original faced criticism for introducing new bugs, compatibility issues, and, in some cases, failing to improve the game's stability. These problems led to a mixed reception from the community, with some appreciating the effort to breathe new life into GTA III and others frustrated by the technical issues.