I know that some PS3 game saves are locked to a PSN ID. But I'm planning on upgrading the hard drive in my PS3, and I'm wondering whether the save backups that I am going to make will work on the new hard drive. I'm going to be using the same PSN ID and the same PS3 profile. The games I'm most concerned about are MGS4, LittleBigPlanet, and Resistance 2.