I'm confused. How's this s'posed to work?

Hi,
There's obviously something I'm missing regarding how mod_mp3 is s'posed 
to work. Hopefully, y'all can enlighten me. I have compiled and 
installed mod_mp3, seemingly without error. The module gets loaded by 
apache without complaint, but it doesn't seem to be working as I 
expected it. It may be working how it's s'posed to be working, just not 
how I expect it. Here is the relevent portion of my httpd.conf file:
<VirtualHost MyHost:8000>
MP3Engine On
MP3CastName "Music files"
MP3Genre "Interesting"
MP3 /data/music/MP3s/
MP3DefaultOperation select
Timeout 1200
ErrorLog /var/log/httpd/music_error_log
</VirtualHost>


OK. So when I connect to MyHost:8000, all my MP3's show up in a 
selection list. When I select one, my browser proceeds to download the 
MP3 for my MP3 player (Winamp in Windows, XMMS in linux), and the entre 
MP3 gets downloaded before anything gets played. This seems to be the 
same thing that happens without mod_mp3 loaded. I was expecting that the 
MP3 would get streamed like a radio broadcast and the file would start 
to be played without the entire file having to be downloaded.

I've tried with this config, too:
<VirtualHost MyHost:8000>
MP3Engine On
MP3CastName "Music files"
MP3Genre "Interesting"
MP3 /data/music/MP3s/BareNakedLadies
MP3Random On
Timeout 1200
ErrorLog /var/log/httpd/music_error_log
</VirtualHost>

and all the MP3's in the directory (and subdirectories) get downloaded 
as a single file prior to getting played. While that's almost tolerable 
on a local network connection, it's hardly what I expected to happen 
with a web connection. What am I missing? Have I config'd something 
wrong, or is this how mod_mp3 is s'posed to work?

Thanks,
Tim