
First of all, as is known to us that movies, TV shows, and music videos in M4V format that purchased from iTunes store are locked by Apple's FairPlay DRM protection which is the reason why they can't be played on non-Apple devices. In addition, M4V is not supported by HTC Droid DNA for directly playing. However, you can still put iTunes movie on HTC Droid DNA for playing by removing DRM from iTunes movies and convert M4V to HTC Droid DNA compatible formats.
NoteBurner M4V Converter Plus for Mac is a useful iTunes DRM removal tool on Mac that can help you get rid of DRM protection from iTunes M4V movies and convert iTunes M4V to HTC Droid DNA supported video formats like MP4, AVI, MOV, MPEG and etc.
Besides converting iTunes purchased movies to HTC Droid DNA, this iTunes DRM video converter can also convert rentals and TV shows from iTunes store and output videos for Android phones/tablets, Windows Phone 8 devices and Windows RT tablets with best video quality.
(For Windows Users, please click to view NoteBurner M4V Converter for Windows.)
Simple steps on how to Convert iTunes M4V to HTC Droid DNA on Mac
1. Add M4V to iTunes DRM video converter
Run NoteBurner iTunes M4V to HTC Droid DNA converter on Mac. Click the add button or directly drag the movie files to import the M4V video resource to the program.

2. Set profile for playing on HTC Droid DNA
To convert iTunes M4V to HTC Droid DNA on Mac, you need to set the output format before the conversion. Click the "Profile" button and then you can select the format from profile list. Here we recommend you choose Customized MP4 video (*.mp4).

3. Convert iTunes M4V to HTC Droid DNA
Once you have choosen the Customized MP4 video as output format, you need adjust the advanced profile settings. Recommended settings are video size 1280*720 and bitrate 1500k. Finally, click the convert button to start iTunes M4V to HTC Droid DNA conversion on Mac.

Resource: http://www.noteburner.com/drm-video-rental-mac/itunes-to-htc-droid-dna.html

