Just got vegas platinum 8 a few weeks ago and went to update it today. Pleasent surprise the update was to platinum 9.... or maybe not. I ran the update and everything went find but ask for product number key? So is this an error about the update?
I thought the same thing but logged an incident with SCS anyway. Here's part of the response I got...
Thank you for contacting Sony Creative Software. The serial number [removed from this post] is the correct serial number for your Vegas Movie Studio Platinum 8.0 and should allow you to upgrade to your new Vegas Movie Studio Platinum 9.0.
He goes on with troubleshooting steps and I don't have v9 working yet, but it's a good start. :)
I upgraded to vegas plat 8, and received it 2 weeks ago, the day before Vegas 9 came out, I called sony and they are sending me Vegas 9 Plat pro, only had to pay the difference from what I paid to upgrade to Vegas 8, It was like $16, I will receive it this Fri. And that includes Shipping.