I have a new Philips Go Gear MP4 player. How do I download find MP4 movies?

If you want to convert one file format to another you have to use converter softwares. For example if you have a video file in your computer, you need to find which format it is. Usualy after the name. For ex: name.avi. Here it is in avi format. what you need to do is search for a converter online, avi to mp4 converter.But there are lot of factors regarding the resolution of the mp4 file your player can support. You need to find that from the manual. If you need to convert DVD to mp3 you need tp get a ripping softwares which you will find in the net too.