A means of extracting files from the Universal Media Discs used in Sony's new PlayStation Portable has been discovered, but a means to actually play the extracted games has still to be found. A new exploit has been made public that has been successful in ripping the files from such games as "Ridge Racers," "Wipeout Pure" and "Vampire Chronicles."

The games are not yet playable because there is no way to burn UMDs from scratch, and the PSP does not accommodate larger discs. However, the site said the ability to look through the games' file structures could still be instructive for developers.

A spokesman for Sony Computer Entertainment of America was not immediately available for comment.