DRM protection always restricts users from enjoying videos at their will. Most M4B audios use Microsoft DRM (Digital Rights Management) license protection system that consist certain restrictions. iSkysoft Video Converter Ultimate for Windows will help you convert DRM protected M4B to MP3 on Windows 7/XP/Vista. Also it can sync your video onto iPod touch or iPhone and some other portable devices. Follow this tutorial and start converting protected M4B to MP3 now.
Free download Video Converter Ultimate:
1
Import M4B video file
Authorize your file firstly. Once it's successfully authorized you will see a window like this:
Open the program and import DRM protected M4B file onto the interface.
2
Set output format and specific reference
Hit the iPhone icon and choose your wanted output format. You can also set your own wanted parameters of output audio format.
3
remove DRM M4B and convert to MP3
When everything is Okay hit "Convert" and the program will start converting DRM protected M4B to MP3 now.
When the conversion is over you can transfer your converted videos directly to your portable devices. Hit on the "Transfer " icon you can achieve that within a few clicks.
