Greenbeast i just tried what you were thinking about the usb mic for the singstar and the logitech mic for ddr max will work with a pc. i can post a screen shot the problem you are running into is that the singstar usb converter plug is mono and it is slim where the tip is. Its made like that on purpose by sony. uhm a typical stereo plug is fatter where as the sony mics for singstar are a standard size plug but the encasing or plastic on the wire is real slim and rounded so as to fit more in the plug socket than a conventional plug. So when i plug the singstar mics in i do in fact have a signal on the pc. there plastic housing is very slim
This is another way i did it take the usb converter apart and plug ya mic in. 3 screws to the outer casing underside. 2 screws under the rubber and 1 screw underneath the sticker. 4 screws holding the circuit board in. it works for me that way. because then the plastic circles on the outside of the interface do not interfere with the diameter of the plastic housing on a standard mic plug.Selling trick by sony to get us to buy there mic. I know that it works. I opened up speech and was training my pc for 5 minutes just to test it out. It should have create a volume control that says wave in.