HELP on save game data files

hi guys.. i just bought a new PSP and memory card so i went to copy n paste the save data's from my old memory card n pasted it in my new Memory card.. but once i put it in my new PSP and load a game eg. DJmax portable 2, they would say that the save game data was from another psp and cannot be loaded.. can anyone help me fix this? thx alot

Some games does not allow to load game saves that were loaded on another PSP.
There is nothing you can do about it, I got the same situation with Tekken:
http://youtube.com/watch?v=ecLhxM0HOVc