A late reporting of my first outing with the 680:
Summary: not good.
I was plagued with all kinds of problems due to a slow card (I think). I got the same error messages Chuck had, and the recording shut down with nothing saved. I was running 6ch in, plus the mix track, so a total of 8 channels. Recording at 24/44.1k onto a -- I think -- class 6 a-data card. I keep forgetting to pull it out and double check, but pretty sure it was a class 6 adata card that I had been previously using with my R44 with no problems. I changed down to 8ch 16/44 and still had the slow card write errors, then finally changed down to 6ch at 16/44 and everything worked fine. Unfortunately, I had to shut down 2ch that I really preferred recording since I couldn't figure out how to stop the mix track.
So questions from all this:
- Has anyone been running 32gb cards? If so, what class/speed?
- What 16gb cards have people been running? I think from what I remember reading people have used Transcend, PNY/HP, and Kingston. I'm particularly interested in knowing if class 4 Kingston cards have been working (or alternatively if the PNY cards seem like reputable cards, after the problems with my adata card, I'm thinking I'd like to keep with a more reputable brand).
- Can you shut down the mix track and if so how?
I'm not figuring it out from the manual, and I wasn't figuring it out in the field though I keep forgetting to try at home. As I recall, you couldn't just turn off the channels from recording like you can with the regular channels. Does the mix track get turned off in some menu? Otherwise, it seems like you would have to choose to record the digital-in rather than the mix track in the menu, and then once chosen I'm thinking you should then have access to turn off those channels like you do the normal ones. Seems hard to believe it is that complicated, but I don't think I was able to just de-select the mix channels like you can the normal recording channels.