Having listened to your first podcast, I would suggest that you break them up into parts: you had a "commerical" break in the middle of #1, so you might have done it there.

I say this only because I have limited control on playback on my mp3 player, so that when I was forced to stop listening to do something else, it was necessary to start over from the beginning. I was well into the second part when this happened, so it took a while to get back to the original break.