Was the Air album Air Song? I'm pretty sure my copy was a CDR and the packaging seemed pretty home made, but the label was Why Not and i purchased it from Amazon... probably a whole 'nother kettle of fish...
Yes, two of them were the ones originally released on Trio in Japan - "Air Song" and "Air Raid". I re-bought them from Candid when they were re-issued on WhyNot. The third was "80 degrees Below '82" which I still have. I'm not sure that one has ever been re-issued.