I can't possible know that.. this varies from sound card to sound card (the number/type of audio lines varies).. This is why I don't include any presets with RR's package... you need to make presets for YOUR sound card or they won't work right.. I do believe the first lines are for winamp and the remaining (as many as your sound card handles) are for the windows mixer -- they should be in order according to your sound card lines (listed in the debug file) ...