My company tried using this software to close-caption paid tv programming
and here's the word of advice: Download demo and test it. It may
or may not work in your setup. MacCaption is available as DV version or as NLE version (even pricier than DV). We have FCP HD working on a G5 with
Blackmagic's Decklink card hooked up, and this setup ONLY supports
the SDI DIGITAL OUT option of the Decklink card :-/ So no go for BetaSP owners. The other possibility (it's quite a workaround, trust me) is to downcalculate your video footage to DV, Firewire it to a tape deck that re-converts it into visual line 21-active CC representation - this DOES work. But by converting to DV, one loses a considerable amount of quality :-/ which may or may not be acceptable for you. The software implementation into a particular system is trial & error based, if it works, you do save $$$.