I found that burned reproductions of a CD is oft times better than the original.
I too have found that occasionally burned CD's sound subtly better than the original. "Subtly" would be the operative word here: This is not at all a subtle difference, in the case of the Hewitt dual-layer. It is quite profound to my ears, and the gain issue indicates to me that something else may be at play.
Newbee and I have been corresponding a bit on the issue, and he hazarded a guess which I doubt he'd mind if I shared here as I think it is a good one:
IMHO, actually a wild guess, when a multi-channel SACD is made, the two layer playback for Redbook playback might be nothing more than the extant SACD playback of the two front channels in the MC layer. There is obviously different recording techniques used to record multi channel performances than two channels, without regard to whether it is plain 2 channel SACD or Redbook.
Now I don't know that this is a "multi-channel" SACD, as he suggests. I'd thought it was just 2-channel for both layers. Regardless, the difference does sound to me as if the recording were miked slightly different. The SACD sounds almost like the mike(s) are back at mid-hall or back further, while the burned CD version sounds more "in-the-room" immediate...or certainly closer to a front-row seat. Not only is it more immediate, but it is better focused and dynamics are improved.
What still puzzles me, given this or a similar theory, is why the Dual-layer version exhibited the same drawbacks the SACD layer yields on my player, when played on my friend's CD-only player?
Marco