How can I hide corrupted icons from the XMB?

Homebrew game made for firmware 1.5 usually causes corrupted icons to appear under the Games Menu. The corrupted icons can be hidden by simply renaming the folders. This can be done by prefixing __SCE__ and %__SCE__ to the two folders. %__SCE__ should only be used for the game folder containing the % sign. Here is an example: We have two folders, iRShell and iRShell%, these should be renamed to __SCE__iRShell and %__SCE__iRShell, respectively.