SmartCast picking up wrong media enclosure

[astralbating]

I have SmartCast configured to pick up audio files only from my Tumblr
blog. Each blog contains a Flash media player and a link to an MP3
(for FeedBurner's sake). Everything up until a few recent episodes has
worked correctly, however, now SmartCast is picking up the Flash media
player as the media enclosure instead of the MP3 file. Of course, this
breaks iTunes.

This is what it is picking up:
Yay! Media enclosure created for: swf/audio_player_black.swf?
audio_file=http://www.tumblr.com/audio_file/17430014998/
tumblr_lz8lrfO7Wc1r1flql&color=FFFFFF

Instead of the MP3 embedded in the post.

This looks like a bug to me as I have changed nothing on my side.
Please fix the bug. Or better yet, make the SmartCast more
configurable (allow us to specify a file extension or choose
specifically which media enclosure we'd like in the XML).

[astralbating]

I fixed the problem myself by using Yahoo Pipes to remove the <embed>
tags for Tumblr's Flash audio player. This will stop FeedBurner from
occasionally mistaking a Flash audio player for an audio file.

If anybody wants to know how to do this, let me know. Otherwise, your
grey hair count may double before you actually get a response from
FeedBurner staff/devs.

[Trig (James)]

Would be great if you could share how to do this. My podcast feed
keeps picking up the image instead of the audio file.

My feed is at http://feeds.feedburner.com/hcr-podcast

Thanks