I'm having a similar issue with auCDtect ; maybe you guys can help me suss it out.
I have MoFi UltraDisc and UltraDisc-II gold CDs of Dark Side Of The Moon. Out of sheer boredom, I ran auCDtect on both sets of EAC-ripped WAV files and the results are less than reassuring...
Result for MoFi UD CD:auCDtect: CD records authenticity detector, version 0.8.2
Copyright (c) 2004 Oleg Berngardt. All rights reserved.
Copyright (c) 2004 Alexander Djourik. All rights reserved.
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Processing file: [01 Speak To Me.wav]
Data analysis: [100%]
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This track looks like CDDA with probability 86%
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Processing file: [02 Breathe.wav]
Data analysis: [100%]
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This track looks like MPEG with probability 89%
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Processing file: [03 On The Run.wav]
Data analysis: [100%]
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Could not qualify the source of this track.
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Processing file: [04 Time.wav]
Data analysis: [100%]
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This track looks like CDDA with probability 42%
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Processing file: [05 The Great Gig In The Sky.wav]
Data analysis: [100%]
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This track looks like CDDA with probability 100%
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Processing file: [06 Money.wav]
Data analysis: [100%]
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This track looks like MPEG with probability 99%
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Processing file: [07 Us And Them.wav]
Data analysis: [100%]
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This track looks like MPEG with probability 85%
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Processing file: [08 Any Colour You Like.wav]
Data analysis: [100%]
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This track looks like CDDA with probability 49%
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Processing file: [09 Brain Damage.wav]
Data analysis: [100%]
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This track looks like MPEG with probability 92%
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Processing file: [10 Eclipse.wav]
Data analysis: [100%]
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This track looks like CDDA with probability 100%
Why are the results so varied?
Check out tracks 5 & 6: CDDA @ 100% probability and MPEG @ 99% probability.
And when I scan the entire album as a single WAV file, I get this:Processing file: [UD.wav]
Data analysis: [100%]
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This track looks like MPEG with probability 79%
The analysis for the UltraDisc II is no better.
Result for MoFi UD-II CD:auCDtect: CD records authenticity detector, version 0.8.2
Copyright (c) 2004 Oleg Berngardt. All rights reserved.
Copyright (c) 2004 Alexander Djourik. All rights reserved.
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Processing file: [01 Speak To Me.wav]
Data analysis: [100%]
------------------------------------------------------------
This track looks like CDDA with probability 94%
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Processing file: [02 Breathe.wav]
Data analysis: [100%]
------------------------------------------------------------
This track looks like MPEG with probability 92%
------------------------------------------------------------
Processing file: [03 On The Run.wav]
Data analysis: [100%]
------------------------------------------------------------
Could not qualify the source of this track.
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Processing file: [04 Time.wav]
Data analysis: [100%]
------------------------------------------------------------
This track looks like CDDA with probability 49%
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Processing file: [05 The Great Gig In The Sky.wav]
Data analysis: [100%]
------------------------------------------------------------
This track looks like CDDA with probability 62%
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Processing file: [06 Money.wav]
Data analysis: [100%]
------------------------------------------------------------
This track looks like MPEG with probability 100%
------------------------------------------------------------
Processing file: [07 Us And Them.wav]
Data analysis: [100%]
------------------------------------------------------------
This track looks like MPEG with probability 89%
------------------------------------------------------------
Processing file: [08 Any Colour You Like.wav]
Data analysis: [100%]
------------------------------------------------------------
This track looks like CDDA with probability 92%
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Processing file: [09 Brain Damage.wav]
Data analysis: [100%]
------------------------------------------------------------
This track looks like MPEG with probability 73%
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Processing file: [10 Eclipse.wav]
Data analysis: [100%]
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This track looks like CDDA with probability 100%
Well, at least track 10 is consistent...
But check out track 6 (UD-II): MPEG @ 100% probability?! 100% ?!?
And scanning the whole UD-II album as a WAV gives the same result as the UD WAV:Processing file: [UD-II.wav]
Data analysis: [100%]
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This track looks like MPEG with probability 79%
So, I'm going to start testing a variety of different CDs, because these results definitely throw the accuracy of auCDtect into question.
But if any of you audio brahmins have any insight as to why this happens, please let me know.
Thanks in advance,
~esa