I've successfully uploaded 3 episodes to my feed. I just posted my fourth episode, but there was an issue with the audio file. I fixed that and the audio file is now accessible both through my main feed and my feedburner feed, but a day later, it is still inaccessible through iTunes and other podcatchers.
I've tried checking the PodMedic. which says everything is fine. I've also tried resyncing, to no effect. Any ideas?