I had purchased Production Suite a few years back and upgraded/crossgrade to FCS1 sometime last year. I was hoping to upgrade now to FCS2 and have just bought the upgrade package for FCS (which remains as yet unopened).

A query - i do not have the original discs for Production Suite (returned for the crossgrade), but also cannot find the serial numbers - would the upgrade to FCS 2 work with the serial number i have for the FCS1 Crossgrade?

After the cross-grade, I didn't need to use any older serial numbers when installing FCS 2 - The installer did need to find the older versions where they should have been installed and then needed the new numbers (to operate) once it was all installed.

http://docs.info.apple.com/article.html?artnum=305389

http://manuals.info.apple.com/en/Installing_Final_Cut_Studio_2.pdf

I would hold off on upgrading depending on your hardware, and how much you use soundtrack pro or motion. Soundtrack Pro 2 is nearly unusable right now due to export and sync issues, not to mention effects bugs galore.

Motion 3 is unusable on macbook pro's with the latest update- very unstable.

FCP seems to work ok, but there is a question as to whether the sync issues in roundtrips from soundtrack pro are an FCP or STP problem.

Check out the apple forums and decide for yourself on upgrading.

Not to mention some goofy UI in Compressor ( that takes a bit to get used to) and the fact that exporting any timeline out of FCP into Compressor that contains a Motion file brings up an error message and a failure.

Still worth the upgrade though...