Almost all dvd recorders use one or another form of UDF (see google) and as that is what it is there is no assurance this will work. In fact, did you try this? (I bet it failed hard.)
Make a new plan. That is, record your contetn with the Sony then bring all your content back to the computer for what most of us will call "post" or "post production."
Bob
I want to create an open DVD-R on my iMAC running iDVD '09. I have the duo core, 2 gig RAM, Leopard iMAC. I want to record an intro, then move the DVD to a SONY burner and record a live session, then return the DVD to the iMAC and burn a closing and then close the DVD as a master for duplication. Is this possible with iDVD?

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