It relies on Burrows–Wheeler transform or algorithm to convert all character sequences recurring frequently into identical letters strings. Supported formats: Packing / unpacking: 7z, ZIP, GZIP, BZIP2 and TAR Unpacking only: ARJ, CAB, CHM, CPIO, DEB, DMG, HFS, ISO, LZH, LZMA, MSI. The main features of 7-Zip: High compression ratio in new 7z format with LZMA compression. The Wii game ISO file comes from the Wii physics game disc, it always has the 4.37G capacity, this format can not be opened directly on the computer, you must burn it to disc, then you can play these games on your Wii machine.
A *.wbfs file usually contains only one Wii game, however, this format can support multiple Wii games in one file.
