how to use MTurk for audio transcription

I was very interested in automated transcription for awhile. But after the recent downtime of the PhoneTag system, I turned off the service. People kept getting a fast busy when their service was down. I had though to writing a script to send my voice mails to MTurk. Over at Waxy the guy did something similar and explained it very well, code included. It is the best MTurk audio transcription guide I have seen. It still ends up costing $.40 per minute which is about $.20 per :30 seconds. In volume you can get a contractor in the philipenes to do that for $.10 per :30. Still too much to support with ads, but WAY cheaper than doing yourself.