Why do you need to convert M4V format?
Files with M4V extension are used by Apple for DRM protected iPod TV shows. These TV shows can be used exclusively in your iTunes or on your iPod. To watch them on any other device, you have to remove DRM protection.
M4V Converter Plus could convert protected M4V video to MP4 format easily. It is designed for converting DRM protected M4V videos from iTunes store. If you purchase or rental M4V videos from iTunes store, you can use this M4V converter to remove the DRM. You can free to download M4V Converter to have a try.
How to use this M4V converter?
M4V Converter Plus is designed for Mac user. After you download this M4V converter, you will find it is easy to use. I like to show detailed steps about how to convert M4V to other formats. Now, let me take M4V to MP4 as an example.
1: Download the powerful software - M4V Converter Plus, install and launch it. You will see the user - friendly interface.
2: Hit the button "Add" in the main interface. Choose the M4V video files from iTunes. Moreover, you can add many tasks at one time or drag these M4V files to the converter software directly. And then click "OK".

3: Click "Output" to locate for your converted video files.

4: Click "Profile" to choose "MP4" as your output format. To have more exactly output files, you can set the parameter by yourself.
5: Then click the button "Convert" to start working. After conversion, you could click "show file in finder" to see your converted video.