Hi guys! I have also a working unit of AJA IO Firewire (NOT "LA" model)
I have been looking how to get it working right and how it works in different systems.
Actually I have it working perfectly in Mac OsX Mavericks 10.9.5 , also working in Mountain Lion, Lion, Leopard and Snow Leopard .
it's possible to use AJA IO LA as stand-alone unit like a some kind of TBC
Does this AJA have TBC features?
I have other AJA capture cards, Black Magic and Matrox cards. The most "stable" capture card is my Matrox MXO2 LE MAX.
My AJA IO and AJA Kona LHi needs a really stable input signal. If not, there are dropframes. I use a DMR ES10 to get "fixed" my signal in my AJA Captures.
As soon as i can, i would create a complete post comparing how these capture cards (and some more like Pinnacle 510) works with the same VCR input.