I don't think you need anything other than the Lightscribe CDRW. It writes data, then you flip it over, it burns the label.
Fran, you said 7 minutes... is the regardless of how 'busy' the label is? All take 7 minutes or would it vary with density of the burn? Seven minutes, I could live with.
Just saw an external LightScribe burner for $170 (ouch!) at OfficeMax. I think you might find them online for less than $150. (External... internals are less.)
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Me Bill
Yamaha PSR2000
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Bill