David –
this is a direct answer, if money is not an issue.
1) do as Walter Biscardi has done, and purchase a Sony J-3 or J30-SDI, and pop your Beta tapes into the J-30, which will turn your tapes into a SDI signal that can go directly into the Kona 2 with embedded audio. Easy – just like Walter does.
2) purchase the standard AJA I/O. You can use the I/O control panel to allow the unit to act as a CAV-SDI converter, and take the SDI out of the AJA I/O, and go directly into the Kona 2. You will not have this capability with the AJA I/O LA.
My clients have countless archive librarys of Beta footage from the theme parks. Those that don’t own a Digi Beta, but own Beta VTRs and a single HD VTR (and Kona 2) are all using the I/O for this function.
Is this a better, more direct answer for you?
Bob Zelin