M4V Converter Plus is an all-in-one DRM media Converter. With it, you can remove DRM from any iTunes videos and convert protected M4V to common MP4, AVI, FLV, WMV, 3PG, etc. Here the hot how-to tutorial you can follow.
iTunes DRM Removal tool & M4V Converter
Best iTunes DRM Converter on Windows and Mac
iTunes DRM Removal tool & M4V Converter 