MP3? MP4? What is the difference?

Is there a difference between a mp3 and an mp4, and if so what is it?
Do all mp4's play video's? Is the meizu considered an mp3 or mp4?


Thanks
WT

an MP4 is a file type that is the video equivalent of the MP3, so no, the M6 would not be considered an MP4 player because it can only play avi video files

often the term Mp4 player is mistaken for any mp3 player with video function.
This is obviously not true as Mp4 is a format just like Mp3, WMA, Avi, JPG etc... if your player doesnt play Mp4 its not an mp4 player..
just like a player that doesnt play mp3 is not an mp3 player..

The fact that the Meizu doesnt play Mp4 doesnt influnce the functionality though. Actually Avi files are more common and - in my opinion - easier to use than Mp4.

The Meizu is a great mobile video player.
I owned an Ipod video with the Meizu m6 and the video on the Ipod was worse in pretty much all ways. 1) harder to convert 2) lower image quality 3)much lower battery life for video(6 MEizu, 2,5/3 for Ipod Video)

yes I agree, even though the M6 can olny play avi's, it is much more convenient format then the MP4