your netscape browser does not have Microsoft

Hi folks I hope someone can help me.
I have copied all of my music files from my old computer to a remote hard drive and then to my new computer. Most of these files were ripped from CD's that I own.
Now when I try to play them in Media player I am being sent to a internet explorer page telling me that the copies are prorated or something like that and that I have to aquire licences.
When I click the get licences button I get a window saying
My Netscape Browser does not have Windows Media Services plug in installed.