If you want to enjoy 3GP videos on Quicktime player, 3GP to MOV Mac can help you. The powerful Mac 3GP to MOV converter can rip DVD and convert video to mov with high conversion speed on Mac OS X.
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Guide
3GP to MOV OS X
Good way to convert 3gp to mov mac
Step 1. According your mac processor, you can free download Intel version or PowerPC version to install in your mac.
Step 2. Click
button to import 3gp videos you intend to convert to mov on mac os x.

All added files will be listed on the main interface. You can watch them on the preview screen.
Step 3. Choose MOV as output profile and output folder to save the converted files.

Step 4. After these preparations, you can click "Convert" button to start converting 3gp to mov mac. The conversion window shows you conversion status:

Wait until the conversion is finshed and you can open the defaulted folder to enjoy the converted files at once.