I'm using the QuickTime Player to play my media files with my web browser. Some of the media files won't play. What should I do?
You may need to set the MIME types for the QuickTime player.
STEPS
Open your QuickTime Player. (From your desktop, go to the Start menu and select All Programs/QuickTime/QuickTime Player.)
From the menu at the top left, select Edit/Preferences/QuickTime Preferences.
At the top, click the Browser tab.
At the bottom, click MIME Settings.
Click the + sign to expand your list such as the list for Video.
Select the file types you want to play such as AVI.
Click OK.
Click OK.