I actually already did create a high quality soundtrack for Tiberian Dawn and Covert Operations. I just haven't released it yet, because I wanted to see if people cared about the Red Alert version first. The only problem with the Tiberian Dawn version is that I couldn't find high quality versions of Act on Instinct, Stop Them, In Trouble, No Mercy, and Just Do It Up WITHOUT vocals. In my opinion, the CD versions with talking and vocals do not fit in the game. Thus, I feel the original tracks are better, even in lower quality. If someone can find high quality versions of those tracks without vocals, I would include them.
Awesome work you've done compiling the HQ tracks!
I second the petition for TD tracks... even if they have vocals, some of us wouldn't mind hearing them in game.
Also, could a similar thing be technically possible to do with Dune 2000? I believe they use a different audio format.