DVD player will not play MP4's

Hi I have a Phillips DVD player 6 months old and it will not play MP4’s. The audio comes clear but there is no video. I contacted Phillips about this problem and they said there are no MP4 codecs available for the player. I was wondering if anyone ran into this problem. Where can I download a mp4 codec for my dvd player. Help would be greatly appreciated.

Well, In my personal opinion that your DVD without the mp4 decoder and it need you update the drive program for your DVD , but as the Philip said that there is no mp4 decoder and you can not use it to play mp4 format ,I suggest you use some converter to covnert the mp4 format to other format and it will be fine !