This comes from a fan website for The Carpenters. The information is old. And possibly before the Universal Studies fire.
If you click on SACD from this page:
Carpenters Fans questions answered by Richard Carpenter
www.richardandkarencarpenter.com
Richard Carpenter answers fans questions. He was very generous to answer all the questions that were asked. Fascinating information from awhile back.
_______________________________
Question:
Having recently re-mixed ‘The Singles 1969-1981’ for SACD/DVD-Audio release, was there anything about the process which surprised you?”
Answer:
"Not really; it all seemed as natural as mixing in stereo."
Question:
Will the new surround mixes use the original instrumentation, or will some of the later re-recorded instrumentation be used?
Answer:
"Both, depending on the particular track."
Question:
Is Richard considering using recordings used for the Quad mixes from some 30 years ago on the new SACDs? Fans would simply eat that up.
Answer:
"No, no, no, no. Quad was a dubious experiment, and Karen & I were on the road and had no time to oversee the quadraphonic mixes ourselves. An A&M staff engineer - not Ray Gerhardt - did the remixes and I was anything but happy with them. Technology has come light years and I can guarantee the 5.1 remixes will be far superior to the Quad."
Question:
Just wondering if there is any likelihood of another 5.1 release as there are so many more Carpenters songs that would be great to hear in surround, ie, "Those Gold Old Dreams" & "Let Me Be The One".
Answer:
“There are currently no plans for additional SACDs. The record company is the one to decide if the format is economically worthy to produce another.”
______________________________
So, anyway, we have to remember that these Q & A most likely came around the release of the SACD and before the Universal studios fire. It’s also possible he might reconsider the matter. The original multitrack tapes allegedly burned up in the fire. And we don’t know if The Carpenters Quad tapes still exists.