Such as if the Roxio 10 is updated from
(harumph? 1.2 GB download)

I see Roxio do this with regularity if the Roxio was pre-installed or came with some machine or DVDRW drive then I change the DVDRW drive. That's not a bug but something Roxio put into their OEM version.

Tell more. Hopefully it's the old OEM issue and not the failing drive issue.

Be sure to try other titles like CDBURNERXP which is free and co-exists with Roxio just fine.