Because of RIANZ rights issues, the content will only be available to NZ based clients, using Anycast routing into WIX, where the server is located. ISPs not peering at WIX may receive Help Desk calls asking why the content won't play.
There's more info available from Radio NZ (http://www.radionz.co.nz/enzology/) including some sample audio clips. It might be useful to check that these work now rather than wait until the last minute. Radio NZ appear to be indicating on the radio that they plan to make the programs available on the Wednesday after the broadcast. Note that this content will only be available at the WIX. If you want to get a peering session set up at the WIX you need to complete the form at http://citylink.co.nz/cgi-bin/nzix.pl?tmpl=wix.tmpl remembering that our first working day back at CityLink is Wednesday, 5 Jan - we will help before that of course but it may take longer than usual.