What is MP4 & where can download MP4
In fact,MP4 is not a file format,it just like MP3 Player,but it can play video.MP4 is not MPEG-4,it is just a device.
MP4 means a decode/encode way,include:
Audio:AAC;Video:AVI,ASF,WMV,MPEG-1,MPEG-2,MPEG-4
So these files are belong to MP4 family.