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RE: Cricket Polarity Tester

Dear Tony,

I do believe that you're missing something. I've researched this subject many times and here's the problem. The test disc will read correct polarity in one of two ways: If the test signal was inverted when it was recorded to the CD-R and the playback was inverted or the test signal wasn't inverted when it was recorded to the CD-R and the playback is non-inverting. So how do you know which is the case when a CD-R is played back non-inverting. Likewise, for an inverted playback, i.e. either the recorded CD-R is inverted or the playback is inverted but not both. And again how do you know which case it is? I think that it's going to require an optical verification of the pit and land pattern that's on the test disc of know its polarity to a scientific certainty 100% certainty.

If it's as easy as you think it is, then how is it that so many well respected companies make both inexpensive and very expensive ($67,000 and up) CD playback devices and DACs that are inverting or have their polarity switches marked wrong and also CDs that are inverted?

George

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