PROBLEM: 
When viewing your Podcast feed, some programs do not appear in the feed even though they are properly added to your podcast channel.

REASON:
Your files are not added to your podcast feed until there is a valid audio/video file defined.  If you create a media program, but neglect to specify its MP3 file, then that program won't show up in your Podcast.

SOLUTION:
Edit your media program(s) and ensure that each program satisfies both of the following conditions:

1. Each program must have a media file specified (normally in the "medium" field).
2. The media file must be uploaded via the SiteOrganic File Manager.  Files stored on external servers, or on custom FTP sites, are not valid for use in Podcasting.

Once you correct the file settings above for your media programs, then they will be eligible to show up in your Podcast channels.