Maybe they were ripped with WMP 9 and that's why Freeme and unFuck doesn't work. Two options, if what i mentioned before is true: first, you will have to wait for a new version of those two programs. Secondly just delete and search for MP3, VQF or OGG versions.
That's why I never Liked to download WMA files, because if a starting "newbie" forgets to switch it of, then you just drow away a couple of hours of downloading for nothing (specially if you are on 56).
Cheers,
El_Matador
PS: I'm not sure if here is a new DRM version, the above is just a guess, because of the ways M$ is doing things.