Converting RVZ to ISO is essentially a "decompression" or "reconstruction" process. Because RVZ is lossless, the resulting ISO is bit-perfect compared to the original disc. This is a crucial distinction in the world of digital preservation. Many compression formats are "lossy," meaning they discard data to save space. RVZ preserves everything necessary to rebuild the original structure.
If you have a large library to revert, you can convert them all at once. How to convert RVZ to ISO (GameCube Games) convert rvz to iso upd
Developed by the Dolphin Emulator team, RVZ is a highly compressed, lossless disc image format. It replaced the older GCZ and CISO formats. Converting RVZ to ISO is essentially a "decompression"