Most of the protected video and music downloaded online like Windows Media Player iTunes, Rhapsody, Napster, Ruckus, Bearshare , Spiral Frog are all DRM files.

What is DRM? Why do we remove DRM from windows WMA, M4P and WMV?

DRM (Digital Rights Management) - The anti consumer copy protection that prevents you from using music or movies in a way that suits you.
For example, if a DRM WMA or DRM WMV you downloaded from WMP(windows media player) that has windows DRM, you can only play it back on a compatible device, so if every piece of music had windows DRM on it you would need to buy the same track on CD to listen in your CD player or car, as an iTunes download to play on your iPod, as a ms store download to play on your Zune etc, but since you paid for it once you shouldn't be forced to pay for it again and again and again, remove windows DRM and you can play it on your phone, iPod, Zune, PSP, CD player, pc, and anything else that you can listen to music on.

I got a few methods listed below:
1. Burn and rip
Actually, there is a common free method to remove DRM WMA, M4P with 2 steps:
Step 1 Burn the DRM WMA, M4P to a CD.
Step 2 Rip the DRM WMA, M4P from CD to your computer as MP3 format , then the DRM should be removed from the WMA files.
But it's not very convenient that may wear out your CR-ROM, and It also needs a blank CD, a CD burner and a CD ripper to help you.


2. Re-record
One of the most common and simple technology is recording the DRM WMA and DRM WMV then use an ordinary converter to convert the recorded and unprotected files. Because this technology is easy to realized and easy to support more DRM formats besides DRM WMA and DRM WMV it is welcomed by most of the DRM converters like the SoundTaxi,Tunebite, etc.
But there are some disadvantages for those programs.
1. The conversion speed won't get much improvement due to the long recording process.
2. Much audio and video quality could be lost during the recording process.


3. Hook
Hook is another new and more complicated technology which can be used to remove Windows DRM. Comparing with Re-recording software, these sorts of programs have much higher conversion speed, but it's hard to make it support some DRM formats with new and lofty encryption techniques.
And as far as I know, Daniusoft was one of its supporters. After giving a test for some free trials I found it's very easy to remove DRM from WMV WMA files with Daniusoft Media Converter Pro, and it also can extract audio from DRM WMV and othe video files and convert other video & music even HD video in high quality. this DRM remover software has powerful function: video converter, audio converter and extract audio from video that fits all of conversion demand.

You can free download the to have a try:
http://www.wmatomp3-converter.com/digital-media-converter-pro.html#123




Simple steps for conversion:
1. Add DRM WMV , DRM WMA, iTunes M4P and other protected files.
2. Choose the output format you need
3. Pressthe "Start" button.