If you are looking to save space on your USB drive for your Wii or Wii U (via vWii), you shouldn't be looking for "Highly Compressed ISOs" anyway. You should be looking for .
This is the most critical step for size reduction. To make discs physically robust and read smoothly, game developers fill the disc with "garbage data" - essentially dummy, blank information. Tools like WiiScrubber remove all this useless filler, creating a much smaller ISO image that contains only the actual game files. When this scrubbed ISO is then compressed with a standard tool (like WinRAR or 7-Zip), the results can be impressive. Uncompressed ISOs are often poorly compressible by standard tools because the data is encrypted and looks random. However, after scrubbing, the ISO is filled with predictable patterns (zeros or blank space) and can be compressed extremely well, sometimes down to a fraction of its original size. Download Wii Games Iso Highly Compressed
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