I just bought myself an SPL meter, and now I need Avia. I've noticed it doesn't come cheap though, and for a guy who owns maybe 4 DVDs, I really don't want to spend 80 dollars for a calibration disc. So where in Canada might I find Avia for a good price? I notice A&B Sound has it for $70.00, and Amazon.ca has it for $60.00 (plus shipping). Anywhere I can go and just buy it in person for a good price? What about cheaper alternatives? Thanks. Jonny K.