tbaker, I went ahead and copied the address for the m4a feed from drabblecast.org and pasted it into DoggCatcher, and now it's working. Weirdly, when I search for "drabblecast" in the app, like 8 different feeds come up, and most of them only show up to episode 295.
I think I found it. When you next get a chance, could you see if 296 is now in those feeds? I believe the problem was some improperly encoded quote marks in the description of the MP3 feed, which I updated a few days ago.
Thanks for the catch!
You're my quasi-ichthian angel, you're my half-amphibian queen...