using "curl" with the link you gave:
curl
http://di.fm/mp3/trance.pls
Gives me this:
[playlist]
NumberOfEntries=4
File1=http://64.236.34.4:80/stream/1003
Title1=D I G I T A L L Y - I M P O R T E D - Trance channel! (US Ultravox)
Length1=-1
File2=http://64.236.34.4:5190/stream/1003
Title2=D I G I T A L L Y - I M P O R T E D - Trance channel! (US Ultravox)
Length2=-1
File3=http://64.236.34.196:80/stream/1003
Title3=D I G I T A L L Y - I M P O R T E D - Trance channel! (US Ultravox)
Length3=-1
File4=http://64.236.34.196:5190/stream/1003
Title4=D I G I T A L L Y - I M P O R T E D - Trance channel! (US Ultravox)
Length4=-1
Version=2
Of which I can use Mplayer to play the streaming audio file.
mplayer -cache 4
http://64.236.34.196:5190/stream/1003
KC