I use same sony. In Toast, if you go to toolbar - recorder - recorder info and scan again, the CDR will come up. I never have trouble otherwise, and Toast recognizes Sony as Firewire as indicated in both Toast window as well as recorder info window. It would be great if burner just came up but I am not troubled by this. Usually I turn burner on when I am strarting up. Then it's there automatically. Sony does suggest you turn burner on first then computer. Hope I helped some.
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