It's now agonisingly slow to sync; loading 40GB of files took over six hours. Not only that, but it claims to be full when it's actually only three-quarters full. There's still 13GB-ish of space left. I suspect that the clowns at Creative have cobbled together their own half-assed filesystem with an unreasonably low limit on the number of files it can store.
I've prised out the hard drive to repartition and reformat it directly. No dice. I've reloaded the firmware. Nope. I've trawled the forums, which are semi-abandoned now that the product is discontinued. Zilch. And you can't downgrade, so there's no going back. Creative are a bunch of fuckwits, and I'm an idiot for trusting their software.
I may soon be in the market for an iPod Classic. Nnngh. Grr. Hate. Hate.