I have the DVR-106D burner and am using Prassi - PrimiDVD V.2.0.749. I have tried the latest PxEngine 507, 408, and 358. None will see the Burner in PrimoDVD. Tried the Drive, Internal, External Firewire & External USB2. No Luck. Roxio6 sees it fine and works fine. But Prassi is much better for DVDs and multiple jobs, etc. Any help mostly appreciated.