It seems that the PodTrapper file browser is case-sensitive when doing file extension matching.
- I have a directory on the SDCard containing several podcasts with the .MP3 (upper-case) extension.
- Browsed with PodTrapper to add them to the playlist, but the directory appeared empty.
- Browsed with the Media app to verify that they were there, and noticed the extension.
- Renamed them to change the extension to .mp3 (lower-case).
- Went back to PodTrapper and it found them.
- Happy happy.
Obviously, this is a really minor issue, but I thought I'd let you know about it.