What is the biggest Memory card for PSP?

My psp memory card broke?

• i don't know if it is the card or the card reader, but my psp won't read the memory stick and won't show my homebrew games. But my UMD games still work, they just don't save. Also, it broke while i was copying a large game, when it stopped copying and gave a warning about cyclic redundancy or something. The when i boot my psp, i can't see all my games. I want to know if it is a memory card or psp problem, so i can go buy a new memory card or attempt to take apart and fix my psp. Thanks in advance if you think of anything helpful. :)

• Answer:

  It sounds like a problem with your memory stick itself, not the psp. Ive gone through several myself, and they seem to be very sensitive to overfilling them with data, because I bought a brand new 1gb stick, and loaded a 980mb movie on it, and the stick was dead within 5 minutes of taking it out of the package. I managed to fix one by reformatting it, but most of the time, replacing it seems to be the only thing that works.