Hi and Welcome!
Connecting a DVD burner to a controller in Raid mode is always a kind of gambling, regardless of brand.
The success of such is influenced by Mainboard/Controller Bios, drivers, software, phase of the moon etc… So there is no warranty, a burner will work with your configuration even if there are “works for me” reports for the same drive and chipset.
It would be great if your controller bios (and configuration software) would allow to configure the operation mode of certain Sata ports individually. Not sure, if this is wishful thinking.
In case, anything fails, you can still get a Silicon Image based PCI Sata controller for your drive