Deep Purple - Machine Head[SACD rear channel configuration corrected]

When Deep Purple's Machine Head was released on SACD it included a quadraphonic mix of the album. Unlike other quadraphonic mixes on SACD such as The Moody Blues' albums and The O'Jays' Ship Ahoy that had derived center and LFE channels added to them to create artificial 5.1 mixes, Machine Head featured an non-enhanced quadraphonic mix. But exactly which mix is it?

Comparison with the UK SQ mix originally released on LP and later on CD shows the SACD quad mix is similar, but not quite the same. Comparison with the US mix released on reel-to-reel and CD-4 LP reveals that the SACD is not that mix. Could the SACD contain the UK SQ mix with the rear channels reversed?

As well as the full album in a quadraphonic mix the SACD included three bonus tracks - possibly to make the SACD similar to the 25th anniversary CD release. The first time I created a conversion of the SACD I included the bonus tracks. These bonus tracks turned out to contain the 5.1 surround mix that was commercially released on DVD-Audio and included digital watermarking copy protection. When the bonus tracks were converted from SACD to DVD-Audio the audio watermarking was still intact causing issues for players that detected these watermarks.

This conversion contains only the original album with no bonus tracks and with the rear channels as presented on the SACD swapped over to restore the original UK SQ mix configuration.
Source: SACD

Converted to: DVD-A MLP 24/96, DVD-V DTS 24/48 & Dolby Digital 24/48