swa66 - 8:03 pm on Apr 28, 2013 (gmt 0)
By that definition there is no good DRM.
But there is. I can show you documents, images and video that can be displayed online or distributed on disk that cannot be decrypted and the DRM cannot be removed.
If you really believe that:
Post one of your imaginary files online that you guarantee to pay 100.000,- USD to the first one to send you an unprotected copy.
I'd suggest you not do it though, you'll loose the money within hours.