I found this script while hunting for a way to deter streamrippers.  Is it possible to implement it on Centova?
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#!/usr/bin/perl
# Smoothbeats Anti-Ripping Technology (ART)
# Written for Smoothbeats.com
use strict;
use LWP::Simple qw($ua get);
use LWP::UserAgent;
# ****************************************
# Script settings
my $server="your_server";
my $port = "8000";
my $password = "your_password";
my $art_freq = 110;  # How frequently should the ART message be displayed?
my $art_delay = 10;  # How long should the ART message be displayed for?
my $art_message = "Dynamic Range Radio";
# ****************************************
my($title, $last_update);
# LWP settings for http request
#$ua->proxy('http','
http://proxy.com:8080');  # Uncomment if you need to configure a proxy
$ua->agent('Mozilla/5.0');
while(1) {
  # Retrieve current title
  $title = (getdata($server, $port))[6];
  # Update title with ART message
  &settitle($server, $port, $art_message, $password);
  $last_update = time;
  sleep($art_delay);
  # Set title back
  &settitle($server, $port, $title, $password);
  sleep($art_freq);
}
sub getdata {
  my($server, $port) = @_;
  my($content,@data);
  # Get content from 7.html
  $content = get("http://$server:$port/7");
  # Parse fields from content
  (@data) = ($content =~ m/<body>(.*?),(.*?),(.*?),(.*?),(.*?),(.*?),(.*)<\/body>/is);
  return(@data);
}
sub settitle {
  my($server, $port, $title, $password) = @_;
  my($content);
  $content = get("http://$server:$port/admin.cgi?mode=updinfo&song=$title&pass=$password");
}
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