Thanks for the recommendation and will look into that!
Not sure I understand the Zone thing - so can I essentally configure a 'zone' which points to the AirFoil application withing MC 18? Any pointers within the MC 18 application on this would be appreciated. Thanks.
Zones are kind-of like "sets of settings" within MC. And, yes, one of the primary reasons for the feature is to allow you to set up two (or more) "zones" of audio. So, the idea (for a normal implementation) is you'd have two sound cards in your PC. One is connected to the Amp/Receiver in the Living Room, and the other is connected to a little set of speakers you put on the Deck.
Then, you can set up two Zones in MC, one pointing to the "Living Room Sound Card", and the other pointing to the "Deck Sound Card".
This gives you two independent Playing Now lists. These Playing Now lists can be playing separate lists simultaneously, or "linked" and playing the same thing at the same time to both outputs.
Zones store almost all of the Output-related settings scattered around the Options dialog independently of the other zones. So, you could "bitstream" on one zone, and not on the other. Or have fancy DSP setups in a particular Zone, and a more "flat" default zone. Like I said above, think of it as a "set of settings" that you can quickly and easily switch to and use independently.
Essentially, you just add a new Zone via:
Player > Zones > Add Zone
Then, you configure MC normally (run through all the normal first-time setup stuff). Then, when you are setting up the Options > Audio > Output Mode, you will want to pick the sound device for that zone explicitly under Output Mode Settings, instead of leaving it set to "windows default". It will remember all the relevant settings independently for that particular zone. So, with Airfoil, you'd have your "real" sound card in the "main Zone". And then you'd add a second "AirPlay Zone" and set the Audio Output for that zone to your special AirFoil "sound card". More info here:
http://wiki.jriver.com/index.php/ZonesIf you use this feature, I find it handy to add the Zones button to the top or bottom toolbar, to allow you an easy way to quickly switch back and forth between available Zones.