From Ida Software:
Now it is possible for you to watch your videos on your PSP. any2psp is a program which lets you convert videos to a format your PlayStation Portable device can play. With this handy program, you can now watch your videos on your PSP no matter what the video format is.
You can even convert your high definition videos (for example 720p videos) to watch them on your PSP. what you need to do is just to open the program, select your source video, give it a new name and wait for the conversion operation to complete. After the conversion, just transfer the converted video to your PSP and then enjoy watching it.
Difference of any2psp from other converters is that it can convert the video in the sizes of 480x272 (16:9) so you will be enjoying watching your videos in full screen on your PSP.