This project has been dormant for quite some time, but iSFV will be receiving an update soon that will make it more compatible with Mountain Lion and maybe add some features. If anyone has feature requests, please post them now. I am trying to figure out if there are still any 10.4 or 10.5 users, let me know if you are one of them.
Version 0.31 was a small release but included an important fix that could make the application crash for some SFV files. The new release should have a new look, new icon (hopefully, I'm counting on someone to help me with that), and even better performance!