Is MP4 a video format or the latest audio?

video

I believe that's the format iTunes uses for it's files (music and podcast)

http://en.wikipedia.org/wiki/Mp4

http://en.wikipedia.org/wiki/Mp4
I just loaded some songs from my puter to my phone. Description has it as an MPEG-4 Audio File. :shrug:

I just loaded some songs from my puter to my phone. Description has it as an MPEG-4 Audio File. :shrug:
Since MPEG-4 is a container format, MP4 files may contain any number of audio, video, and even subtitle streams, making it impossible to determine the type of streams in an MP4 file based on its filename extension alone. In response, Apple Inc. started using and popularizing the .m4a (audio) file extension.

Since MPEG-4 is a container format, MP4 files may contain any number of audio, video, and even subtitle streams, making it impossible to determine the type of streams in an MP4 file based on its filename extension alone. In response, Apple Inc. started using and popularizing the .m4a (audio) file extension.
You so smart. :hot: