Michael, I was there to witness it when it occurred. The HD time remaining indicator was blinking "slow." I'm guessing that the file times reported were real and that the system wasn't just misreporting the files. The only question I had that Jim couldn't answer was if you transferred and deleted chunks on that filesystem from your computer. A good format works wonders sometimes.
The other thing I could think of was that you had a non-stock drive in it. I'm wondering if SD chose their drives because of the heat performance. Perhaps the drive you put in has trouble when it gets very hot. That's just a reaching guess, but all I could come up with. When Jim had me look at it, the thing was pretty hot to the touch - almost as hot as it got when I first stealthed with it.
Matt, I had a few shows on that drive since the last reformat, but everything I've recorded is still on there, so there was a contiguous span of files on the device. Maybe it is the drive. I'm not happy with the power consumption of the unit as it is, I'm getting 5:15 from a 6000mAh battery and I think I should get better performance. I guess I'll start shopping for a new drive. But I really feel like I need 80G for festivals.
I have to wonder if SD is preallocating a maximum size file prior to starting the track. It seems like maybe they are not and instead trying to write FAT updates each time they store a new cluster. Otherwise I can't understand why the 4200rpm HD wouldn't keepup at these rate. I've tried asking that question but they ignore it.
It may be a heat issue with that heat drive. Jim, were you running the 722 in the portabrace? The unit did get really hot when I was stealthing it and I was fairly uncomfortable with it resting on my belly.
Can someone open their unit and tell me the stock HD model number? I want to get a spec sheet and see where my drive's specs differ with respect to access speed and power dissipation.