Roman Rakus wrote:

Hi. I have found cddl licesne is OK, but not GPL compatible. May I use cdrtools in Fedora? If not, why?

You cannot afaik. CDDL is a free and open source but GPL incompatible license. The problem with cdrtools is that, it is a mix of GPL and CDDL licensed filed that makes them undistributable by anyone except the author.

http://lwn.net/Articles/198171/

Rahul