The application converts DRM protected m4p, m4a, m4b, wma to mp3, wav, wma Share DRM Music application was designed to be an audio and music files converter.
Share DRM Music converts any DRM protected music files (such as M4P, M4A, WMA, M4B) and unprotected music (such as WMA, MP3, rax, MP4, WAV, RA, snd, AAC, OGG, AA, aif) to plain MP3, WAV, WMA formats. Then you can share these converted files on any computers or music devices.
Share DRM Music uses a virtual CD burning technology to simulate the burning and ripping/encoding process automatically. With Share DRM Music, you can easily convert protected audio and music files to plain MP3, WAV, WMA formats. ShareDRMusic does not crack DRM control. It bypass DRM control with a virtual CD-RW drive.
Fully automatic, ShareDRMusic frees you from the hassles of copy protection without defeating the DRM copy-protection technology used by your audio files. This means it will function with all copy-protection measures, and it's completely legal.
Here are some key features of "Share DRM Music":
Convert all DRM protected audio or music files (such as M4P, M4A, WMA, M4B) to free MP3,WMA or WAV format.
Batch convert any protected M4P, M4A, WMA files to MP3.
Support ID3-tag formats. All existing tag information are automatically stored. (except
windows media player, it doesn't support CD-text while burning DISC).
With Virtual CD-RW burning tech to simulate the whole procedure of burning, ripping & encoding.
Very easy to use.
Music files converted with ShareDRMusic have CD quality.
Super fast conversion: Only needs 15 seconds for a four minutes song.
Requirements:
microsoft media player 9 or later
256 megabytes (MB) or higher of RAM
2GB of available hard-disk space or higher
XGA (1024x768) or higher resolution monitor
Limitations:
3 minutes conversion limit
MP4 Converter
2.21 MB 
$ 35