Lite-On HD 166S DVD-Rom: only at 6X?

While burning on the fly with my 811S I can only choose 6x in Nero for my dvd-rom. I think that this is the reason for the fact that during burning the readbuffer goes every time from 100 to 0.
The burning takes 11 minutes!!! Is this normal?

Additional info:

** INFO : An Empty Writable Disc Is Recommended For Accurate Results
** INFO : LITE-ON DVDRW LDW-811S [FW HS0K]
** INFO : [DVD+R:RICOHJPN-R01-002]
** INFO : Write Speeds (Supported By This Drive On This Disc) Listed Below

** INFO : GET PERFORMANCE Write Speed Descriptor(s)
Descriptor #1 = 11080 KBPS (8.00x) - [CLV/Non-Pure CAV]
Descriptor #2 = 8310 KBPS (6.00x) - [CLV/Non-Pure CAV]
Descriptor #3 = 5540 KBPS (4.00x) - [CLV/Non-Pure CAV]
Descriptor #4 = 3324 KBPS (2.40x) - [CLV/Non-Pure CAV]

** INFO : MODE SENSE Write Speed Descriptor(s) [Legacy Command]
Descriptor #1 = 11080 KBPS (8.00x) - [CLV/Non-Pure CAV]
Descriptor #2 = 8310 KBPS (6.00x) - [CLV/Non-Pure CAV]
Descriptor #3 = 5540 KBPS (4.00x) - [CLV/Non-Pure CAV]
Descriptor #4 = 3324 KBPS (2.40x) - [CLV/Non-Pure CAV]

Most DVD-ROM’s is hardly capable of reading fast enough for 4x on-the-fly DVD copying.

So stick to 4x when doing on the fly copying of DVDR/RW media. :iagree: