POPstation a converter for PSX games to work on PSP. This allows you to convert a PSX ISO for the PSP on the PSP.

Release notes:

v2.0: Added a list of psx titles & IDs. It will now change the psx EBOOT save id, game title and game ID, according to what game you select (list is retrieved from psx.db. The psx.db file might be outdated, search Google etc. to find the most recent one).

http://forums.qj.net/showthread.php?t=147841