Correcting sector boundary errors, removing digital pops/clicks from vinyl rips, and ensuring proper stereo balancing.
In internet culture, a "repack" means the collection was re-released by a digital archiving group. This usually happened to fix corrupted audio files, tag metadata correctly, or compress the files into a cleaner RAR/ZIP archive for better distribution. The Sonic Identity of 2008 Dance Music va ultrasound studio rare remixes vol159 2008 repack