Many PSP extras and games come compressed in the RAR format. The RAR archive, though a proprietary format, is popular because of the high-performance compression of the packages. Many users still prefer the RAR format over the standard ZIP format included with Microsoft Windows today. To use the items included in a RAR archive on your PSP, you need to use a desktop computer to “unrar” the archive, then transfer the decompressed files back to your PSP. Writer Bio
