Bestmedia.de PLATINUM DVD+R 8X DL 8,5 GB Double Layer 25er Cakebox

http://www.bestmedia.de/products/c/dvdp/platinum_dvd_r_47_gb_25er_jewelcase.html

Article number: 100040
EAN-Code: 4 027927 001 725

Reported as 4x max performance by this drive and 1 of 4 records failed verify with medium error sense code, but data secure enough for movies and worth the price of 13EUR incl. postage in the bay.

$ dvd+rw-mediainfo /dev/sr0
INQUIRY: [HL-DT-ST][DVDRAM GH22NS40 ][NL02]
GET [CURRENT] CONFIGURATION:
Mounted Media: 2Bh, DVD+R Double Layer
Current Write Speed: 4.0x1385=5540KB/s
Write Speed #0: 4.0x1385=5540KB/s
Write Speed #1: 2.4x1385=3324KB/s
GET [CURRENT] PERFORMANCE:
Write Performance: 4.0x1385=5540KB/s@[0 -> 4173823]
Speed Descriptor#0: 02/4173823 R@5.0x1385=6876KB/s W@4.0x1385=5540KB/s
Speed Descriptor#1: 02/4173823 R@5.0x1385=6876KB/s W@2.4x1385=3324KB/s
READ DVD STRUCTURE[#0h]:
Media Book Type: 00h, DVD-ROM book [revision 0]
Media ID: CMC MAG/D03

Older Verbatim 8x in this (16x +R DL spec’d, see Manual GH22_ENG_50H.pdf, p.9 ) burner:

$ dvd+rw-mediainfo /dev/sr0
INQUIRY: [HL-DT-ST][DVDRAM GH22NS40 ][NL02]
GET [CURRENT] CONFIGURATION:
Mounted Media: 2Bh, DVD+R Double Layer
Current Write Speed: 10.0x1385=13850KB/s
Write Speed #0: 10.0x1385=13850KB/s
Write Speed #1: 8.0x1385=11080KB/s
Write Speed #2: 6.0x1385=8310KB/s
Write Speed #3: 4.0x1385=5540KB/s
Write Speed #4: 2.4x1385=3324KB/s
Speed Descriptor#0: 02/4099695 R@5.0x1385=6876KB/s W@10.0x1385=13850KB/s
Speed Descriptor#1: 02/4099695 R@5.0x1385=6876KB/s W@8.0x1385=11080KB/s
Speed Descriptor#2: 02/4099695 R@5.0x1385=6876KB/s W@6.0x1385=8310KB/s
Speed Descriptor#3: 02/4099695 R@5.0x1385=6876KB/s W@4.0x1385=5540KB/s
Speed Descriptor#4: 02/4099695 R@5.0x1385=6876KB/s W@2.4x1385=3324KB/s
READ DVD STRUCTURE[#0h]:
Media Book Type: 00h, DVD-ROM book [revision 0]
Media ID: MKM/003

Sorry, Nero testing stuff refuses to install under Wine 1.4, no windos on this host.

Can anyone with a newer burner confirm 4x only?

Link correction: http://www.bestmedia.de/products/c/dvd/p/platinum_dvd_r_47_gb_25er_jewelcase.html?L=1