I thought I’d posted this, but can’t find it, so apologies if it is here twice.
If the problem is an occasional player getting through with an uncalibrated crystal oscillator, that should also show as the clock keeping bad time.
I don’t have a Fuze yet, so I tried my e200 against foobar on the PC. The big problem is getting both to start at the same time, but I managed once. Through a 6 minute song they played so close you’d think the phones and speakers were running off the same source. That was on the Sansa firmware.
Then I tried a longer play on Rockbox (because it preloads the next track so shouldn’t lose time between songs). The PC and Rockbox started a little apart, so didn’t sound synchronized, but stayed about the same, maybe a quarter second apart, for close to half an hour.
