@natevw How do you file a Time Machine bug? I don't see anything of interest in the log, and I'm not sending over the .sparsebundle. :-)
@simX In the past, the .sparsebundle wouldn't mount. This time, I'm getting an error "creating the backup directory" and can't unmount.
Resuming my other Time Machine backup via FireWire 800. So much faster than gigabit Ethernet.
@siegel Great update. Thanks.
After the replies to Gerbarg's post, I tried a fresh Time Capsule backup. This is the 5th day, and it's already corrupted. 100% Ethernet.