>On Air Canada, they offer WiFi on the planes so we can connect to their network and watch movies. For those who do not have a laptop, they offer a tablet. Then, of course, on their tablets, everything works accordingly as expected. But, on my laptop, a Windows 8.1, no matter if I try with IE, Firefox or Chrome, I cannot play the movie. IE says DMR is not supported. The other two remains black when the movie starts. What is this DMR and how to workaround that?
I think you mean DRM
http://en.wikipedia.org/wiki/Digital_rights_management (or is it in French?), You can check
http://support.microsoft.com/kb/891664 as an starting point
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