Analysis of High-Compression Distributions and DLC Integration 1. Introduction
Most reputable repacks use lossless compression for executable data but may use lossy compression (re-encoding) for 4K cinematics to achieve drastic size reductions.
The term "Highly Compressed" refers to the process of using advanced algorithms (such as LZMA, Zstd, or proprietary pre-compression tools like XTool) to reduce the game's original footprint—often from ~40GB down to ~15GB or less.