Firstly, please pay attention to the forum in which you post. This did not belong in "Digital A/V News".Secondly, this search produces a list of various threads on this topic. I'm sure at least one of them must answer your question:http://www.hydrogenaudio.org/forums/index....%2BdvddecrypterIn essence, you can easily do this by demuxing the audio stream using DVD Decrypter.
My search was not meant as a dismissal of your claim; I have used "doom9" and "dvddecrypter" as my search terms, neither of which you would have used if you are inexperienced in the area.Hopefully you are referring to the Doom9 link I posted in my edit (which is missing freom your quote), as that should be the direct answer you need.Good luck.
You're better to go to WAV and then another lossy codec anyway, so you get:Lossy > Lossless > Lossy... instead of:Lossy > Lossy > LossyWMA is a curious codec to be able to choose. Maybe DVD Decrypter will let you select any ACM codec, and therefore you could install the LAME version and go direct to that... one to investigate sometime!