Comments

MSmart wrote on 8/4/2013, 9:34 PM
Contact Customer Service (Support link above)

Here's the answer to a similar question asked last year:
http://www.sonycreativesoftware.com/forums/ShowMessage.asp?ForumID=12&MessageID=796244
John222 wrote on 8/5/2013, 7:05 PM
I purchased a 2nd hand copy of Vegas Pro. How would I know if someone previously used it to upgrade to 12?
Chienworks wrote on 8/5/2013, 8:52 PM
1) Ask the person you bought it from.
2) Try using the serial number to purchase a discounted upgrade.
3) Call customer service and ask them.