C-dilla appears to be a copyright-protection program that keeps you from copying software with your burner. This program comes with Unreal Tournament 2003, TurboTax, game demos and many more programs. Personally, I would never buy any program that I found uses such protection. It is very hard to remove.
Programs which have installed this will sometimes not function if it is removed. It is said by some to be harmless, but by others to report back to the main company, so it is indeed spyware.Here
is a note about it.Here
is a tidbit about it in the Spybot forums.
Spybot Search and Destroy may get rid of it, it has in some cases. If it's not working, try going into Expert Mode, tools, Ignore Products, All Products, and make sure it's unchecked. (I've got two instances)
3D Studio Max and other 3D rendering programs use this, as well as Autocad. If you think that you have a program that may be using it that you want to keep, I'd think twice about removing it.
If it's Turbo Tax and you're no longer moving it, Intuit has a removal tool here
Edited by Herk, 24 April 2006 - 09:24 PM.