Currently I can capture tapes no problem via firewire with the following setup:
Sony J-30 SDI connected via firewire to:
3GHz Intel Core i7
Intel Iris 1536 MB
Capturing to an external hard drive connected via firewire.
However, when I try to capture Betacam SP tapes (to save the line 21 CC information cutoff by firewire) with the following setup, I can only capture roughly 30 seconds of video before recording stops without as error message. This is the setup used to connect the deck via SDI:
Sony J-30 SDI, SDI cable to Blackmagic Ultrastudio Mini Recorder, thunderbolt to Mac Mini.
Has anyone tried this setup before, or can anyone tell me if this is perhaps a video card issue?