.mp4 mistaken for audio not video?

[LtCmData]

Whether I am dragging and dropping or opening video files with .mp4 ending, set to play in windows media classic player, the program thinks they are audio files.

 

Here is the original directory:

 

Here is the message:

 

Here it is with CDBurner:

 

Here is CDBurner after clicking No to message:

 

Burned the disk anyway to check if the files play as video or audio files.

 

They play as video files.  I guess the message was a little alarming saying that the files were audio files.

[floele]

MP4 files might be audio files though. CDBurnerXP can't tell the difference.

[Mr. Omar]

It is more common .M4A be audio-only files. https://en.wikipedia.org/wiki/MPEG-4_Part_14#.MP4_versus_.M4A