Naturally, this is causing exceptions.
The audio still there and works with some podcatchers, but, crucially, the feed does not validate.
I've tried a number of solutions, including starting a new feed with nothing in it except the mp3 I'm trying to podcast.
But:
Every time, without fail, it lists the lengths as -1.
Feedburner won't let me manually edit the XML to fix this, nor will the blog where the feed is being originated.
What do I need to do to fix this, other than not use Google products? Do I need to disable Smartcast? Do I need to manually write up the XML?