Yes, use a LEGAL registred copy of CDRWIN.
You seem to be using an illegal serial, and CDRWIN fakes that the CD is writen succesfully. But actually, CDRWIN writes some "mistakes" to the CD and the CD will apear as an audio cd (.cda.files) and not as a data CD like it should.
Some illegal serials are blacklisted, and you are using one of them.
shame on you!