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Q<sup>-1</sup> is horribly wrong! Quantization is not invertible. Option 1 is only possible if no quantization is done and the compression algorithm is lossless. The whole article has a lot of errors. {{unsigned|188.155.108.64}}
:You were right to remove the bad figure from option 1. I edited the text to make it correct, I think. [[User:Dicklyon|Dicklyon]] ([[User talk:Dicklyon|talk]]) 18:07, 8 January 2011 (UTC)
== Please make it more 'audible' ==
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