@krycheck, I don't understand much about those formats, but are "m3u" files not supposed to be "playlist" files? I mean, it is supposed to be for playing radio streams and not as standalone music files. Maybe Totem opens those files and then opens the stream, but in Rhythmbox adding the link as a radio station maybe the way it is supposed to be done. Podcasts in any case are downloaded as mp3 files usually, and this is a radio stream.
@krycheck, I don't understand much about those formats, but are "m3u" files not supposed to be "playlist" files? I mean, it is supposed to be for playing radio streams and not as standalone music files. Maybe Totem opens those files and then opens the stream, but in Rhythmbox adding the link as a radio station maybe the way it is supposed to be done. Podcasts in any case are downloaded as mp3 files usually, and this is a radio stream.