Pioneer will very likely release the Pioneer DVR-109 before the end of year, maybe even sooner. They already have promised support from one big name DVD manufacturer for DVD-R9 media.
You won't find DVD-R9 on any DVD forum work group info, since they don't officially support it yet, due to complaints from Hollywood.
Pioneer is moving more and more towards better DVD+R then DVD-R
Punch Cards -> Paper Tape -> Tape Drive -> 8" Floppy Diskette -> 5 1/4" Floppy Diskette -> 3 1/2" "Flippy" Diskette -> CD-R -> DVD±R -> BD-R
The Progression of Computer Media