No, there isn't. Just don't forget to write "processOldSaveList = 1" in the globalsettings. Backup your save games, just in case...
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There are some games that are not really fixed.
shin megami tensei - strange journey (usa) | It saves, but it doesn't load (says, like, save is corrupted and will be deleted).
4561 Kyokugen Dasshutsu - 9-jikan, 9-nin, 9 no Tobira | Freezes if you touch certain items (under the vase and a thing on the wall) in the room that I am now. Save file:
http://www.mediafire.com/?ntdhzxudbgg
Always running the games as pure as possible (no patches, no trim and everything off in the firmware) and from the NAND.