The PlayStation Portable, like other devices and operating systems, supports a limited number of file formats. Below are file extensions that describe the different formats that Sony's portable game console supports for video, games, audio, and images. If your file is not in one of these formats, you will need to convert it before it can be used on the PSP.
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In addition to movies and music videos commercially available on UMD, the PSP can also play video files from the Memory Stick. These files must be in MP4 or AVI format.
Use a free video file converter if you need to convert a video to a format that can be played on the PSP. For example, an MKV to MP4 (or AVI) converter is needed to play MKVs on a PSP.
Music can be used from UMDs, but usually comes in the form of music videos. You can also load your own songs to play on the PSP, as long as they are in one of the formats listed above.
