This was kind of interesting. I tried 3 16x burns at the same time. I used three diffrent image files (same file but 3 diffrent copies on the same raid array). A plextor was master with another burner as slave, but the slave drive was idle (not one of the three burning). an nec and an aopen were on the other channel as master and slave and were the other two burners used to burn. I used three instances of nero to burn, and started them all in less than a minute (the aopen was the first to start).
The plextor that was the only burner running on that channel finished a 16x burn in 6:43 (and was aparently not limited by not getting data fast enough even though the other drives were burning too).
the aopen and nec which were on the same channel took 24:50 and 25:02 for a 16x burn. They did not seem to change speed at all when the plextor finished burning. It would seem that trying to run a slave and master at the same time is an issue.
Convientlly, this motherboard has 3 ide channels (for 6 drives). I think I’ll have to try running the third drive off the third channel.
So much for the therory that they had to be master. with all three drive that were burning (including the benq that previouslly burned in 6 minutes) set as master and the only drive burning on that channel, times were 15:34, 15:45 and 15:53. I guess either the hard drive or the pci bus must be bottlenecking it.
I guess I could try using two source drives but I don’t have a free drive to do that right now.