Maximum compression ratio using advanced tools (ZTool, Lolz)

A "repack" is a complete package of a video game that has been compressed to a much smaller download size. BlackBox was a prominent group that specialized in this process. Their repacks typically include:

BlackBox frequently offered "lossless" repacks (where nothing was removed) alongside "lossy" versions. To achieve the absolute smallest file sizes, they would optionally strip away non-English audio tracks, multiplayer files, or compress high-definition cutscenes.