[Icecast] multichannel streaming

[Georg Holzmann]

Hallo!

We are searching for a streaming-server for a e-learning system at a 
university and therefore and I wanted to ask some questions:

There is a database of recordings on the server, and only registered 
users (students) are allowed to hear those.
So if a user wants to hear record A, then a stream should be opened 
(maybe a new mount point ?) and only this user should be allowed to hear 
the stream ...
Is this possible with icecast ?

And the streams should be also multichannel (2-8 channels, it depends on 
the record) ...

Many thanks for any hints,
LG
Georg