<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
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--></style></head><body lang=EN-US link=blue vlink="#954F72"><div class=WordSection1><p class=MsoNormal>It was not uncommon for people to accidentally leave the decoder off from a track and decide they preferred the encoded sound. There were also modified units that were used as an effect. There is a famous story of the Doors’ “Light My Fire” accidentally being mastered without decoding and eventually being released that way because the artist and producer really liked the sound. </p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Bob Olhsson 615-562-4346</p><p class=MsoNormal><o:p> </o:p></p><div style='mso-element:para-border-div;border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='border:none;padding:0in'><b>From: </b><a href="mailto:proaudio@bach.pgm.com">Richard L. Hess via ProAudio</a><br><br></p></div><p class=MsoNormal>He has also found that many/most of these decode better as </p><p class=MsoNormal>Sum/Difference (or MS).</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>He thinks that there might have been a reference document in the </p><p class=MsoNormal>mastering industry--it is that consistent.</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Does anyone know anything about this, or is it just happenstance?</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>We don't think it's a common failure mode of old decoders--but it </p><p class=MsoNormal>appears intentional.</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I </p><p class=MsoNormal><o:p> </o:p></p></div></body></html>