[surrealize]

I had a problem with it years ago when I couldn't watch DVDs on linux (until the DRM was cracked). More recently I had a problem with it when flash DRM broke on linux (if you didn't have HAL installed and tried to use amazon's video for certain DRMed shows).

And in the future I expect more pain with proprietary, closed-source, non-interoperable (and, almost certainly, non-linux-supporting) CDMs, which are where the meat of the DRM will be implemented under the W3C EME proposal but which themselves are not being proposed for standardization.