Ok guys, Sharing of Signed games bigger than 728 MegaBytes is possible ( here :
http://www.epforums.org/showthread.p...57#post1292557 ), but some criteria need to be met.
Games signed using a USA version of a game as BASE can only be played on the PSP that owned a license of that same game version.
IE.: If a game is signed with Modnation USA as BASE, only PSP that owned the
USA version license of Modnation will be able to play it, people owning the EUR or JAP version of same game will get a message stating that no license was found.
Same goes for the other Regions as each region have their unique GameID.
Because of this if such a signed game is to be shared, the uploader must provide info regarding which game was used as BASE to sign the game to be shared and its region so people wanting to download and play such game know before hand if it will work on thir PSP or not.
I,f as most of us, you only have the license of just one region do not despair ... there are ways to get a legitimate license of other regions. Try googling "Sharing of PSN games on PSP"