Files streamed from

rtsp://demand1.stream.aol.com/turner/gl/cartoon_net/adultswim/clips/athf/audio/wantcandy/iwantcandy.mp3

This is a realrtsp url, the file is not an mp3 but an rm file containing 
mp3 data in adu format, one adu per packet with no adu descriptor.

File does not have a standard .ra audio stream
Stream mime type is audio/X-MP3-draft-00
Realplayer8 handles it.