I assume you have fed the two outputs of the SF box into both pairs of inputs. Or, you would have noticed it failing on the line-in's as opposed to the mic-in's run as line-in. So, strike that.
Here is what I would do: I would go outside with the gear and set it up saying everything you do - maybe even writing it down - to set up and run. Try it a few times. If the list is the same every time and it fails, quick plug something else into the SD and see what happens. If it changes, it is the SF. If it does not, the SD is screwing up.
You sure have my sympathies as this has to be driving you mad, stark, raving mad. To have such a great setup and have it fail and not know why. I am confident you will soon. And I really think going through your regular setup procedures in the backyard until it fails is now your best hope. Unless some soul can come up with a better answer. I'd try it.
Best of luck to you.
Only 1 output going B Format. It's a 10 pin lemo out to 4 XLR. There's no option to switch cables going in or out of the 350. The 350 is always powered on and running long after the *lock up* we'll call it. I power down the 744, wait power it back up and the signal is good again and I can continue recording.
Thanks for the feedback though. +T's around.
I decided to call SD and have them ship the unit back to me and I'm gonna run it this week and document what happens, when, settings, etc I'm also going to try reducing the file size limit to 1GB to see if that helps. Maybe the switch in files earlier might resolve it...
Craig T, if you read this do ask Sam tonight if you see him. If I can use his 744 it might be better...just to test it all out on another deck to see if it happens on his.