LG GGW-H20L RE disk read speed .98x (slow, really slow)

vbimport

#1

Average read speed for a single layer Blu-ray RE disk x2 (by Sony) is .98x, this seems very slow, any idea why? Also the burn speed was only 1.2x, now I have a GGW-N10 on my other system and that one is suppose to be slower, but it burns the same disk a 1.88x so I’m concerned as to what is wrong. It starts at 1.57x and then just keeps getting slower as the disk continues to be read. Now at a .98x avg I have problems even playing a movie off the disk at times. The system is set to AHCI SATA mode, so I do not think that is the problem and the chipset is an Intel 631xESB chipset, the Hard drives x2 WD 150GB Raptors and x2 SATA DVD-RW drives do not have problems with speed, so I do not think it is a driver issue.
Even a pressed disk reads at only 1.12x speed, now I thought this was a 6x burner so the read should be at least 4x on a single layer blu-ray ROM disk right?

Any idea what could be wrong?, the speed is that reported by DVDINFO, also DVDINFO will not even allow be to perform a CRC check of the disk, burned in the same drive, though I think this is a program limitation.

Eric


#2

Could be the sata controller (setup) making all that trouble.
could you try another sata port or cable?
Which other sata ODDs are connected?


#3

Can you use CDspeed and run a burst rate test and see what you get?

What OS are you using Vista or XP?


#4

I think DVD INFO was partly at fault, I used Nero Disc Speed to create a disk (scame out at 1.38x this time), however a read test showed 2.13x for a RE disk and over 4x for a Blu-ray movie I have so I think much of the problems as I said stemmed from the use of DVD INFO. I should also mention that nero (latest version 8.2.8?) does not seem to fully recognize th e drive, it has a reasonable idea what it is dealing with, but disc write speeds confuse it. Nero also managed to complete a surface scan without issue.

ERIC