Multi-Media Manager / Stream server

[IsomerX]

Is anyone aware of an existing media (audio) management solution and 
audio stream server?

Desired traits:
Secure Web interface, that includes the ability to rip CDs
Integrated media management solution
Recognize duplicate MP3s in existing collection
Per user playlists
Multiple simultaneous connections to distinct streams (ie each user can 
play their own playlist)


Anyone aware of something like this?

I'd write one, but it includes too many distinct knowledge areas I know 
nothing about...

IsomerX