As with countless similar applications, WinAVI 3GP/MP4/PSP/iPod Video Converter transforms your digital video files into ones you can view on various portable devices, such as PSPs, iPods, and cell phones. The interface is easy to use, with only a few buttons for starting the conversion process. You can adjust the sample rate and video size and convert multiple files at once. Unfortunately, we ran into irritating stability problems. The trouble began when we selected options for keeping our test video's size and sample rate. The program displayed a "division by zero" error message and froze when it started converting; we had to use Windows Task Manager to quit. The program also didn't recognize our QuickTime 7.x installation, claiming we had QuickTime incorrectly installed (we didn't). Throw in the usual demo-version watermark on the output video, and you end up with a not-very-attractive overall package. WinAVI 3GP/MP4/PSP/iPod Video Converter converter demonstrated good speed in some tests, and if it weren't for its bugs, we'd be more enthusiastic. As it stands, however, on-the-go media lovers will probably want to try another program.