The PSP system was unable to read the Universal Media Disc or downloaded content. Solution: Check that you have installed the latest version of the PSP system software by going to Settings > [System Settings] > [System Information] on the XMB™ Menu. If the problem persists, there may be an issue with the UMD drive. Visit eu.playstation.com/contact to contact Customer Support. For more tips and hints on using your PlayStation system, visit our technical support forums at community.eu.playstation.com