Hi guys!
I just wanted to warn you about error in : http://www.centova.com/en/faq/cast3/information/can_multiple_streams_share_the_same_server_side_mp3s

The correct order of paths in /etc/fstab is:
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
but in the article they are vice versa.

If "/usr/local/centovacast/sharedmp3s/" is folder containing MP3 files, and "/usr/local/centovacast/var/vhosts/USERNAME/var/spool/media/shared" is mount point where files should be "linked to", then the correct line /etc/fstab line is:
/usr/local/centovacast/sharedmp3s usr/local/centovacast/var/vhosts/USERNAME/var/spool/media/shared none bind 0 0

You are of course correct -- thanks for this!  I've fixed this and cleaned up the formatting to make it a bit easier to read.