Making DVD

I am running Suse 10.0 with k3b. I have pioneer dvr-509 dvd burener. I am trying to make DVD data disk (DVD+R). I have used their default settings,and have only been able to make coasters. I even have the automatic verify turned on and it passes without any problem. Innteresting, if I use a DVD+RW, it will burn correctly and the system can read the disk. Whenever I place the DVD+R in, the system comes back and says I have a blank disk. I remember in 9.3, it was working with no problems. Anyone has any suggestions on fixing this problem -- Joseph Loo jloo@acm.org