Yes, most any content purchased for use in Studio 10, 11, and 12 will work in Studio 14. Check the following FAQ for a chart that lists all possible content to see if it is compatible with Studio 14.
If you upgraded from Studio 10 and 11, you will need to use the Content Transfer Wizard to get your content into Studio version 14. You do not need to use the Content Transfer Wizard for content activated in Studio 12. See this FAQ for instructions on how to use the wizard:
If you are using Windows Vista, some content purchased for Studio 10 may require a special procedure to install. Some Studio 10 content discs were originally made for use in Windows XP only. As a result, an error may be reported when installing this content in Windows Vista.The following link takes you to the FAQ on how to install this content:
How to install Studio 10 content that generates an error in Vista
The Content Transfer Wizard works with Studio 10, 11, and VideoSpin only. This means that any content for Studio 9 and earlier cannot be installed and made available within Studio 14.