Fred wrote:if you have purchased a Windows license in the past sometime. The use of those codecs was one of the things you paid for.
You may well want to read your EULA. I suspect you'll find you're licensed to use those codecs with a Windows license while using the Windows operating system
. This is why, when you purchase a song via WMP, perhaps via URGE, DRM prevents you porting it to another platform, or limits you to 3 computers. As does iTunes. Same way you're licensed to play a DVD on a DVD-player, or on your computer with a licensed DVD-decoding technology, and not to make it into an XviD!
Windows is unlikely to allow free transfer of technology, via EULA or lack of particulars in the EULA, to Mac or Linux.
An interesting read: http://arstechnica.com/news.ars/post/20070115-8624.html
Real recently won a lawsuit enabling it to decode Windows Media on Linux via its Linux software, but that did not include DRM management.