http://www.fokus.fhg.de/research/cc/glone/employees/joerg.schilling/private/cdrecord.html
The above site emphatically states that Redhat provides a version of cdrtools not to the liking of the developer.
Why did Redhat/Fedora make changes to Mr Schilling's product?
Being able to write DVDs is one good reason. The original cdrecord won't do this, although Mr Schilling does have a commercial version of cdrecord that will do it...
Paul.