Originally Posted by itznfb
It'd be nice to be able to find a drive that will actually rip at 12x. I doubt they exist though.
This is my observation, the drives read speed spec is kind of a misnomer. I use primarily LG WH10LS (10X) drives with firmware patches to eliminate riplock and DVD Fab to do the rips. When doing full disk rips, DVD Fab reports rip speed in MB/s and so if I convert that to an "X" speed factor, I'm seeing a 6X-8X max rip rate -- but that is max and not constant. The rips all appear to be CAV. The disk spins fast with a constant tone hum (constant angular velocity) and stays at that pitch through the rip. When I eliminated the riplock, what I immediately noticed was an increase in the pitch of the drives hum as the spindle speed increased. The rip speed starts out slow from the hub (1X or less) and gradually increases to 6-8X as it gets out to the far edge of the disk -- then it passes through the layer break and starts to decrease again as it moves back to the hub. So, I'm only seeing 6-8X max from a "10X" burner and that speed is only realized for a relatively short period of the rip.
That being said, I have encountered a number of BD disks that, for whatever reason, will not be ripped at a high rate and take twice as long as a normal BD. I have stopped the rips to wash the disk and re-seat it several times in the tray, but to no avail. I can only surmise that the protection scheme is giving DVD Fab a hard time and it has to read sectors multiple times. In those cases, the drives max. read spec. is meaningless.