What format does the PSP play?

PSP supported formatsGames:

1. UMD

Not counting homebrew games, the PSP currently only plays games on UMDs (Universal Media Discs). Sony plans a PlayStation emulator for the PSP, which might be able to play game ROMs off a Memory Stick.

Video:

1. UMD
2. MPEG-4 (aka MP4)
3. PMF's (Sony's video formats for the PSP)

Aside from movie and Music Videos available commercially on UMD, the PSP can also play video files from the Memory Stick. These files must be in MPEG-4 format.

Music:

1. UMD
2. MP3
3. ATRAC3plus
4. MP4
5. WAV
6. WMA

Music can come on UMD (though usually it comes in the form of music videos). You can also load up your own music to play, as long as it's in one of the formats listed (you may not be able to play some of the file formats if you're using a Memory Stick Pro Duo, though; only the Memory Stick Duo is compatible with all file formats).

Photo & Image:

1. UMD
2. jpeg (aka jpg)
3. tiff
4. gif
5. png
6. bmp