I want to put videos from my computer to my Sony ericsson c905. It’s an .mp4 format at 720p resolution however I had it converted to 320×240 resolutions. But whenever I try to play the video on my phone, it was not working. So I tried some other converters but still it was not working on Sony ericsson c905. Friends I want to play my videos with good quality with .mp4. Is there any solution … please help!