: This is a community-driven mod that revives the original 2007 PC port. It adds multiplayer support, widescreen fixes, and FOV adjustments. The base installer is significantly smaller than the modern Anniversary edition. You can find more info on the official Halo 2 PC site Internet Archive : Legitimate digital backups of the original Games for Windows 2007 DVD are often hosted on the Internet Archive Comparison: Official vs. Compressed Halo 2: Anniversary vs Original [PC] | Direct Comparison
Audio files are often the largest uncompressed assets. Repacks frequently stripped high-fidelity sound or replaced it with low-bitrate Mono alternatives. FMV Removal: halo 2 highly compressed