PS. If anyone is wondering how to convert their videos to MP4, use this program: http://www.pcfreetime.com/download.html
I did a virus/spyware check and found nothing, and other websites recommended it.
If you do decide to install it, dont forget to UNTICK install the Ask toolbar. Untick the second option then the first option otherwise if you untick the first option, the second option is ticked, but greyed out. I do this for anything that ask if you want a toolbar to be installed.
I had a 425Mb .AVI file, converting this to .MP4 resulted in a 15Mb .MP4 file.
Big difference and same quality.