12 Replies Latest reply: May 9, 2012 3:19 PM by babowa
assinine Level 1 Level 1 (0 points)

When I download a you tube video that appears with a quicktime logo labelled MPEG4 it refuses to play. instead i get the message: -  YouTube.mp4” could not be opened. The movie is not in a format that QuickTime Player understands.You may need to install additional software to open this type of file.

What is that additional software?

iMac, iPad