QuickTime Player7 can't open "video.3gp". The file may be damaged or may not be a movie file that is compatible with QuickTime Player. How can i do to open movie file? on OS X 10.10.2

i just tried to open video file on youtube. but it shown "can't open "video.3gp". The file may be damaged or may not be a movie file that is compatible with QuickTime Player. How can i solve this issue?

In what file type and compression format did you download the YouTube content? I.e., to avoid such issues, you would normally download the source files as content that is natively compatible with your target player or convert incompatible file type/compression format combinations to files that are compatible with your targeted media player.

I had the same issue and could not find anyone else that had the same problem until I saw your message.

My whole Youtube site was in a strange format. Finally I happened to scroll down to the bottom of the

Youtube site and I saw something which I think said "mobile" and I believe "computer" It was set to "mobile"

for some reason and I clicked on "computer" and everything worked!! Hope this works for you.

scrolling down to the bottom of that strange formated youtube page and clicking on "pc" fixed my problem too, only after hours of trying other things to no avail, don"t know how "mobile" got checked in the first place, thanks for your post.

Such a simple fix for a *really* frustrating problem. Thanks so much for the help!

¡Beautiful! Thank you... mine said "mobile" and "desktop." One click and the problem has (knock on wood) gone away.

I was trying to fix this couple hour and them I found your info here.

Now everything is back.

Thank you.

thank you SO MUCH!

THANK YOU! I've been trying to figure t

this out for MONTHS!!!!