I've recorded 2 shows in the past couple of days, and the MicroTrack had no issues.
both shows recorded from the V3's S/PDIF, both at 24 bit / 48 kHz. for both, I used a 5AH, 9.6v battery with ToddR's "juice box" to power it. this battery, I'm sure, is way overkill, and as a result, I did not have to worry about battery power at all.
Club d'Elf on Thurs. 10/27, 2 sets. 75 min set 1, and 90 min set 2. no issues. Scott and I ran a V3 A/D vs. ad2k comp at this night. I did not run a D8 backup.
Leo Kottke & Mike Gordon Friday 10/28, one set. 90 min. recorded from 2nd row and sound fantastic
was a psuedo stealth job, so again, no D8 backup.
at this point, while I'm looking forward to a new firmware update, I'm ready to leave my D8 behind. there are a few shows coming up which may run more than 2 hours per set. in those cases, I'll probably bring the D8, but only use it to patch the gaps afterwards (i.e. don't record the whole show with it, but start the D8 recording before I have to stop/save/start a new file on the MicroTrack. and then, 10 - 15 seconds later, when the MicroTrack is going again, stop the D8. then I'll just use the D8 audio to patch the gaps in the MicroTrack recording. unless, of course, M-Audio releases a new firmware with a work-around for the 2 gig issue soon.