While we're at it: let's get the unreleased Greg Penny Eltons! Adam once hinted darkly (in an old thread that I can't find) that there were more petty and horrifying details to that story than we could imagine. I wouldn't want him to be indiscreet, but just the same, I hope the truth will out one day.
As for the missing SD multis: I wonder what the full story is. (This is another one of those areas where it would be useful to have a sticky "reference" resource--in this case, a section where we could compile all the info about unreleased high-interest titles.) It was in 2004 that the first 5 Dan albums were slated for imminent release on SACD 5.1--even announced to retailers, right?--then postponed once or twice before disappearing for good. The conference report in the thread you quoted, where Scheiner implies that there were tapes missing for more than one album, was 2005. Then in 2006 he revealed that PL was ready and he'd like to have a go at the others, too, but they were stymied by missing multis for "Aja" and "Black Cow" (the only tracks he specifically mentioned).