Hey all, I've seen people having issues with some of the games asking for the cd and not starting other wise. This can be fixed if you install the unofficial 1.03 patch which makes it so you don't need the DVD in your PC to play any of the games.
The official website:
http://cnp.cncnz.com/tfd/#.Ud6P59_LI7w
A download guide for it:
http://forums.cncnz.com/topic/17034-download-guide-for-the-cc-the-first-decade-unofficial-patch/
This also fixes some other stuff in the games as well. I always install this now when I have to reinstall TFD. Highly recommended.
Note: If you get the "Unfortunately, there was an error loading bhs.dll. Please report this bug!" error after install this patch while launching Renegade then all you need to do to fix it is go into the Renegade installation directory and and rename or delete BHS.dll and rename or delete scripts.dll and rename scripts2.dll to scripts.dll. That should make it work. If I have any of the file names wrong please correct me. :)