I was just trying to post a very cute video of my Grandkids dancing to a Fleetwodd Mac song in the Rumours album which was playing on the TV and was having a hard time doing so. Come to find out Facebook's software did not allow the post to proceed because the song playing in the background was copyrighted. Rats, how can one post any videos IN FB with music in the background? I guess I'll have to find a way to delete the music in mp4 videos...