How to check a file whether it is DRM file or not

Hi,
I have some different files. I want to know whether these files are DRM files or not.Is their any way by which i can find out for any file whether is is DRM or not.
Please reply ASAP






Thanks
Nitin

As for Windows Media files, you can right click on a .WMA, .WMV or .ASF file, select properties and see whether the Properties dialog window has the License tab or not.

You can read about DRM protectopn on the web-site of your content provider.

Windows Media Player allows to turn off automatic license acquiring. Turn it off and you will be asked whether to acquire licenses or not before playing.