I too have the same problem, no key for the Blu Ray plugin. Used the premium rate phone line for help, and received an email saying send your 'Send your Toast 10 Key and we will check it'.
Guess what, they never gave me an email address to send it to, the email was a 'No Reply' address. At the bottom was 'Click here for customer survey' thought I would send them my comments, but that came up with an error, no surprise.
So how do I get this key for the Blu Ray plugin?
Roxio is just not interested now they have my cash. What a poor customer service, just how do they stay in business?