DON'T BUY THIS DVD! you can find it at musicland, samgoody, and so forth. it is distributed by them. i bought in hopes that it claims it has 6.1 dts test signals...wrong. it is only 5.1. nowhere can i find the tests for 6.1. It cost me 10 bucks i thought it was a worth a shot. I will stick with VE and Avia and am waiting for the new one in November!