question for multiple burner

[rob3rtz]

Hi there, I have some question for my multiple dvd burner setup

at this moment I have 3 pioner 108, and 1 pioneer 110d
my setup:

2 pioneer 108 (master and slave) on IDE1
1 Pioneer 108 and 110d (master and slave) on another IDE, I bought a PCI card for adding this 2 drive since IDE0 is used for HDD. My windows read this drive as SCSI

I tried to burn 8X with Nero and using multiple burner option, but they don't like the SCSI, the seems slowing down all.
usually i can burn with 8X speed about 8 minutes, but once I combined with the scsi the will take about 30 minutes

my question, is there anyway to fix this and make the 2 'SCSI' burner work with the other 2 without slowing them down

I'm considering to buy either DVDduplicator barebone or just try to daisy chain them with firewire

any good brand for duplicator controller? and is this ok if I combined the burner (108 and 110d), or they should be identical?

just need expert recommendation about this, any link will be great

Thanks

[Baldrick]

please do NOT cross post. one topic is enough.