Mac media players and editors such as QuickTime and Final Cut Pro like lots and lots different file formats but not .m2t (MPEG-2 Transport Stream, commonly referred to as "HDV"), which means you can neither view M2T files in QuickTime Player, nor edit them in FCP - the Finder displays it as a generic document icon. So if you shoot an M2T video via your HD camcorder, or someone captures an HDV file in another application like Adobe Premiere and sends it to you, you will need to transcode M2T to MOV before bringing it into QuickTime or FCP.
There are good numbers of ways to convert M2T to QuickTime MOV, but the easiest one is to use Doremisoft Mac Video Converter. The benefits of using a Mac M2T to MOV Converter are that it is fully integrated with Mac and Mac Applications like QuickTime, FCP and iMovie, it supports batch processing, and it works.
First download and run the Mac M2T to MOV Converter, then drag and drop the M2T files to the main panel of the program for preparation. You can also do it as before by the old fashioned way: to click the click the "Add Files" icon to load the files.
The Mac M2T to MOV Converter smartly provides the optimized presets for users, so you can simply open the profile box of "Convert to" to choose "Common Video" > "Mov-QuickTime (*.mov)" as the output format with ease. You can also customize the output video parameters by clicking the "Settings" button.
When you are satisfied with the output settings, simply press the big blue "START" button on the bottom right to begin converting .m2t to .mov. Within a while, the conversion will be perfectly done and thereafter, you can easily transfer the converted files to Mac for playback or editing.