i guess any format... even through the cellular video service. Also after i record a video with sound on the phone, the video will play but not the audio... i am playing with it now while im at work... Ironincly i work for AT&T and this is my demo phone i was given to give feedback after i use it. I had the HTC TyTn 1, but i have to try this for a while. I am usually very good with phones, but for some odd reason the sound only works for everyhing but video
