: Lossless compression algorithms are reversible, meaning that the compressed data can be perfectly restored to its original state. This is in contrast to lossy compression methods, which discard some data to achieve smaller file sizes.
This relates to "cracked" games that are compressed into smaller file sizes (repacks) without losing any of the original game data or quality. lossless crack
: Lossless compression is often used for archiving purposes, where preserving the original quality of the data is crucial. : Lossless compression algorithms are reversible