Did a search for a new firmware on the Pioneer DVR-K15 (slim model) and found version 1.11 at the link below:
Release Note in Japanese:
DVD-R DL書き込み 対応
Release Note Translated with Bable Fish
As for DVD-R DL entry correspondence DVD-R light/write quality improvement + R light/write quality improvement & entry to DVD-R DL media only DAO correspondence
I’m wondering if anybody had tried this firmware on his/her drive. Currently, I have version 1.05 on my drive. Please share your experience. Thanx.