This usually refers to , .rar , or .zip archives that use algorithms like LZMA2. A raw 4.37 GB Wii ISO can often be compressed down to 1.2 GB to 1.8 GB for download.
While "highly compressed" versions (like 700MB) are often advertised online, they frequently suffer from removed audio or corrupted textures. For the best quality, look for Wii Scrubber versions or Wii Scrubber Versions This usually refers to ,
Often distributed as a .7z or .zip archive containing a .wbfs or .iso file. This usually refers to