Erase songs on Sansa Express to make room for voice/radio recordings

[jimwise]

I listen to a lot of podcasts too.  For now I have been using the “Add to Go List” feature to keep track of which podcasts I have listened to.  It also helps since I can listen to the radio or other music files, then go back to the Go List to see which podcast I had been listening too and start it up again.  Since the Go List shows the ID3 tags and not the filenames and since the Go List can not be accessed while connected to the computer it still makes it a bit of a hassle to keep track of which podcasts can be deleted from the Express.