Here's the info you requested - my IEEE1394 controller is a PCI card with VIA chipset (1106:3044) fitted in an Asrock K7S8XE (SiS748 chipset)...
Media:
Media Information
Region information N/A not a DVD-VIDEO
Media code/Manufacturer ID RICOHJPNR02
Media Product Revision Number 03h
Format Capacity 3.86GB(4.14GB)
Book Type DVD+R
Media Type DVD+R
Manufacturer Rated Speed 8.0x 11080KBps
Available Write Descriptor CLV 8.0x 11080KBps
Available Write Descriptor CLV 6.0x 8310KBps
Available Write Descriptor CLV 4.0x 5540KBps
Available Write Descriptor CLV 2.4x 3324KBps
Data area starting sector 30000h
Data area end sector 1EDBEFh
Linear Density 0.267um/bit
Track Density 0.74um/track
Number of Layers 1
Complete Media Code
00000000 08 02 00 00 A1 0F 02 00 00 03 00 00 00 21 DB EF .............!..
00000010 00 00 00 00 00 00 00 52 49 43 4F 48 4A 50 4E 52 .......RICOHJPNR
00000020 30 32 03 38 23 54 37 18 00 3E 6E 00 70 62 15 15 02.8#T7..>n.pb..
00000030 0B 0B 08 08 01 19 1B 0B 0B 0E 0F 01 00 00 00 00 ................
RPM works fine, PI/PO/Jitter screenshot has been attached.
The only odd thing was that DVDInfoPro crashed when copying the Media Screenshot to the clipboard...