I had some MP4's that were ripped from DVD's that played just fine on the iPhone 3G. After upgrading to the 3GS, those same MP4's won't play. The audio is there but the video looks stuck...Happening on multiple 3GS's so I don't think it's the hardware. I saw an article saying to go into iTunes and go to the advanced tab and click on convert for ipod or iphone but it just says that the format is correct.
Do I have to convert the MP4's again to something else compatible wi th the new iPhone?
Thanks in advance!