AVI

AVI is a subformat of the Resource Interchange File Format (RIFF), which divides a file's data into blocks, or "chunks." Each "chunk" is identified by a FourCC tag. An AVI file takes the form of a single "chunk" in a RIFF formatted file, which is then subdivided into two mandatory "chunks" and one optional "chunk". AVI files can contain both audio and video data in a file container that allows synchronous audio-with-video playback. Like the DVD video format, AVI files support multiple streaming audio and video, although these features are seldom used.

- - Wikimedia

PSP

The PlayStation Portable (PSP) is a handheld game console developed by Sony Computer Entertainment. Its GPU encompassed high-end graphics on a handheld, while its 4.3 inch (110 mm) viewing screen and multi-media capabilities, such as its video player and TV tuner, made the PlayStation Portable a major mobile entertainment device at the time. It also features connectivity with the PlayStation 3, Windows, Mac, other PSPs and the Internet. It is the only handheld console to use an optical disc format, Universal Media Disc (UMD), as its primary storage medium.

- - Wikimedia

Step-By-Step to Convert AVI to PSP

Interface

Step 1. Download and install the program, then double click it to run it, and then you'll see the main interface of the program.

Load Files

Step 2. Click "Add File(s)" button. Here you can select "Add Video" or "Add Folder" button to add files as you like.

Profile

Step 3. Click the drop-down arrow right beside the "Profile" column and select your desired video format from the drop-down list.

Edit

Step 4. Click "Edit" button to customize the output video like Effect, Trim, Crop, 3D Settings and Watermark.

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