well this is alarming. 3hr 24min into my battery test, my 661 stopped recording. just stopped. 24/48, phantom on, sandisk class 4. hit stop, then record, and it fired back up. not exactly what i was hoping for. 
eta: battery meter still showed full at the time it stopped
in your settings, do you have "Auto Track" turned off? (It's the 7th item under presets). That's where you set it to start a new file after a given amount of time. I usually have mine set at 30 min (if I'm running 24/96) or 1 hour (if I'm running 24/48). Either way, my files are all around 1 gig and then a new files starts.
yes i do have it set to off. i didnt see the point in starting a new file if i didnt have to. is there some concern over the 661 not being able to successfully write a single file for a few hours straight? or are you asking too much of the card by doing this?
As I said, I always have mine set to either 30 min or 1 hour. I don't think having it set to off would be extras stress on teh card, but rather, I am not familiar with the deck's operations when it gets to the file size limit. I thought it was supposed to automatically start a new file, but maybe it doesn't. Because I know that if AutoTrack is on, it will automatically start a new file at the specified time, I suggest you try your test with autotrack set to "on", and then if the deck just stops, you know it isn't because the max file size is reached. The weird thing is that 3 hr and 24 min, at 24/48, your file should be about 3.5 gb, yes? and I thought that if autotrack was off, the max file size was 4gb. So maybe this has nothing to do with why your deck stopped. It does seem strange.
yeah no problems with wavelab 6 and larger files. i just spoke with Doug and he said he wouldnt use any less than a class 6 card for 24/48 and class 10 for 24/96, fwiw.
That
may be a good recommendation in practice. In theory, class 2 (@ 2MB/s) is 4 times the speed needed for stereo 24/96 (at ~0.5MB/s). but we all know how the real world can differ from theory... That said, I've use both an 8gb SanDisk Ultra II card and a 16gb PNY card (both are class 4), and I've never had any issues with 24/96 files. Not that the faster cards wouldn't work, but I think they might be overkill.
To sum up, we don't really know why your deck stopped during the battery test. What type of card was it? Also, was it freshly formatted before you started the battery test?
