I have Finale 2008 and didn't want to fork out another $130 or $170 for the few features 2010 had that I wanted . So instead I was going to buy Songwriter ( $50) just for the new speedy lead sheet capabilities . I just got a new iMac and evidently I need to have Rosetta to run 2008 with Snow Leopard. I did a little research and I guess Rosetta slows down the Mac and is is not a desirable function for Snow Leopard. So it looks like I'll need to upgrade from 2008.