Problems with Ashampoo Burning Studio v6.02 and Cheetah DVD v1.xx on Pioneer DVR 109

vbimport

#1

I own a Pioneer 109, bought it 5 months ago, used it moderately at home for burning DVD-movies, mostly on Verbatim DVD-R 16x. Latest firmware 1.58 from the Japanese site.
Lately I am having problems with this drive, it would not start/finalize disks and up to 75% go to waste when burning with: Ashampoo Burn studio v6.02, Cheetah DVD v1.62, Alcohol 120%, Disc Juggler, you name it.
I am starting to think that Ashampoo Burning Studio v6.02 and Cheetah DVD v1.xx do not agree well as every time I install Cheetah DVD v1.xx, problems start. However, I have worked extensively with this software on other computers equipped with other burners and never had a worry.
Has anyone experienced similar problems?