I am real happy with this voice recorder I bought for taking notes during flight test, it really does a nice job of recording clear cockpit audio with a time stamp. People have been using cockpit audio recorders for a long time so nothing new there. The big sell on this particular recorder for me is the USB drive which allows me to download the file to a separate computer for long term storage.
Sony Digital Flash Voice Recorder (ICD-PX312)
I bought the adapter from Aircraft Spruce when I chickened out about impedance matching. With some more time I am confident an industrious fellow could build one up from radio shack parts. I haven't tried it on anything but GA impedance equipment. I assume it would need an adapter to work with military comm stuff.
What are you working on tonight?
Design Build Test
-Race 68