Who told something is wrong? Their support tells SATA card cannot be used in 5V PCI Slots, and ATA/133 doesn´t reach ATAPI standard for DVDs, it´s just for harddiscs. If you got a DVD burner connected to your ATA/133 which works well, give me information to trust you more than Sonnets support
But it all isn´t about Sonnet, I also won´t go out for a Acard without any hint that recent DVD burners work with it.
So please tell me your working DVD setups from 7500 to 9600.