I have a Sony Ericsson k750I which has a mp4 player, this is to say it can play mp4 movies. Any time i convert to mp4 i get 2 files a .thm file and a .mp4 file. Neither of these seem to work on my k750i. Has anyone got any idea's into why they won't play?
I currently have a psp mp4 converter. Which converts anything to mp4 but they never seem to play on my phone, anyone know why?
If i need another software, whats the best/cheapest option?

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