Have you ever encountered the problem with Tube Sites Submitter that it could not read or display an MP4 file? Then you probably have an incorrect codec which does not decode properly.
I have tested this codec and it works perfectly, just install it and restart your operating system. Download: Media Player Codec Pack http://download.cnet.com/Media-Player-Codec-Pack/3000-13632_4-10749065.html
Here you can download codec from our server http://tubesitessubmitter.com/CodecSetup.rar
Do not hesitate to contact us if you have any questions.