media-video/qdvdauthor-1.0.0 got released on 2008-01-13
thanks for reporting. I'll check this asap.
I don't know if you already worked on this but I found an upstream bug. Check my bug report there: https://sourceforge.net/tracker/index.php?func=detail&aid=1903883&group_id=98243&atid=620414 So if you get validity check errors or compile errors this can be the reason.
finally in CVS. ;-)