DRM is digital rights management that is used to enhance digital video content of copyright.


The work principle of DRM is - firstly build digital program authorized Centre and coding compression of digital content, the key can be encrypted to protect (lock) content, the head of encrypted digital programming hold the KeyID and program authorization center URL. When a user listens the content, according to the programme head KeyID and URL information, they can sent the key to decrypt (unlock) after digital programs authorization center verify authorization, then programs can be played.

How to play DRM Protected Video Music files:

1 Download unprotected Video Music for playback.
2 with DRM Removal Software, you can remove the DRM protection, supporting protected WMV WMA iTunes BBC iPlayer, etc protected files. just Open video file with DRM in software, then choose the video or music files you want to convert to in the format list, choose output options according to your need. then hit"Start", after conversion finished, you can play DRM-free files without restriction, this Software is fully compatible with Windows 7.