There are several homebrew applications available that allow you to rip UMDs to the memory stick or even to a PC. Our favorites are UMD Tool and UMD Net Ripper. Depending on the application you choose, the UMD will be dumped differently, for example, UMD Net Ripper uses Wi Fi to dump the UMD directly to your PC, while UMD Tool dumps it to the memory card. Please check the ‘read me’ files that come with your chosen application.
Please remember that ripping games is illegal unless you own the game.