Why some video files can't be played with QuickTime?

The Core of The Problem

That is because QuickTime first check the extension of the file to read the file. If the extension of the file is not one of the formats mentioned in the first part, QuickTime will not recognize it and an error message will pop-out. In such cases, you can just manually change the extension of your file to a QuickTime supported one. Of course, you need to make sure that the codec of your file is supported by QuickTime. This solution is very easy but certain severe problem might occur, for instance, the image of the video might get blurred or twisted. So if you are not very good at codec things, don’t try this one. Is there a better while equally simple solution? Absolutely yes! The third part of this article provides a detailed answer.

Convert Video to QuickTime Format on Mac OS X

Step 1, Download and install QuickTime video converter

You can download it for free here:

To install it, simply mount the .dmg archive by double-clicking it, and copy the application to your applications folder (or wherever you want).

Step 2, Load video files

Drag & drop video files to the program. Or go to "File" menu, choose "Add Video/Audio files" to locate the files you want to add. This QuickTime video converter for Mac also supports batch conversion, so you can import and convert several multimedia files at a time.

load video, QuickTime video converter

Step 3, Choose "MOV" as output format

Select QuickTime, convert video to QuickTime

Note:Have several video files and want to combine all of them? Just check "Merge into one output file"

Or, you can also use the "split","crop","rotation" and "adjustments" function to edit videos before conversion.

QuickTime Settings, MOV settings

Step 4, Start video to Quicktime Conversion on Mac OS X

Click “Convert” to convert Video to QuickTime files on Mac.If you don't want to wait around during conversion, this smart program allows you to shut down the computer automatically after conversion.

This video converter is specifically designed for Mac OS users, including Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard on iMac, Mac Pro, MacBook, MacBook Pro, MacBook Air, etc.