Unresumable streams...?

[Thomas Lübking]

As pointed out before the play/pause button of the new toolbar should hint 
"stop" rather than "pause" if the played tune (stream) cannot be resumed.

Unfortunately checking whether this is a stream is not enough.
In fact i'm not sure whether i found _one_ non resumable stream (last.fm can, 
if there was some ILLEGAL way to use shoutcast, i'd know it can ;-P - some 
german radion stations i tried can as well...
I tried by listening and to fire a "pause" and check whether phonon enteres 
the "stopped" state, but that didn't happen (otherwise i had used that as last 
resort check...)

Thus:
- Is there a "can't resume" flag i missed?
- Is stream resuming maybe backend related? (Using mplayer i've never 
encounterd any stream i could not navigate or pause...)
- Can anybody name a stream that's guaranteed to be unresumable? (so i can 
play around and test it for certain aspects that hint this.)

Cheers