Are you looking for one tool to convert your M4V videos to MP4, for MP4 can be used on more kinds of video players than M4V.
Even when the M4V movies are purchased or rented from iTunes Store, they have these or those limitations which give you a lot of inconveniences and troubles.
It is necessary to convert M4V to MP4, and then you can enjoy the converted MP4 videos without any limitations and play them anytime and anywhere.
Here recommend you a powerful and simple M4V to MP4 Converter on Mac - M4V Converter Plus.
Note:Support output presets for Apple Devices including iPad Air, iPad 4 /3/2/1, iPad Mini2, iPad Mini, iPhone 6, iPhone 6 Plus, iPhone 5S, iPhone 5, Apple TV 3/2/1, iPod Touch 5/4/3/2/1, Apple Software including iMovie / ProRes, iDVD / ProRes, Final Cut Pro / ProRes, Final Cut Express / ProRes.
Support Android phones (Samsung, HTC, Google ), Mobile phone / Devices (Creative Zen, iRiver, Sandisk Sansa, Blackberry, Nokia N-series, Archos, HP iPAQ series, Palm Treo Series, HTC Touch, Nokia Lumia 920, ) Game Console (Sony PS3, Xbox 360)
Web Video (FLV, SWF, for YouTube / Flickr / Daily Motion), and other video and audio format (3GP, AVI, WMV, MPEG-1, MPEG-2, MP3, AAV, WMA, VOB, M4V, M4R, MP2).