Low- this may just add to the confusion, and since I never focused on the
various CD versions of Zep, I can't really comment. But, apparently there
have been a number of remasters on CD over the years, and post #41 in
the first link below addresses Mothership in particular. There are also Barry
Diament (apparently the original cds) and Marino remasters. Apparently,
the transfers used for the Marino remasters, circa the early 90's, were the
basis for Mothership remastered by John Davis, if I am reading this
correctly.
I have no dog in this fight, so am willing to stand corrected, but offer it only
for additional
information, per the Hoffman forum:
http://forums.stevehoffman.tv/threads/led-zeppelin-original-cds-vs-
remasters.236470/page-2
(look at post #41).
See also,
http://forums.stevehoffman.tv/threads/led-zeppelin-non-
remastered-cds-question.88238/
(Post #12)
Finally, I think John Davis is the guy that did the actual remastering of the
2014 stuff, which I gather is also the same for the Zep mastered for
iTunes?
And did the Celebration Day release? (which was the 02 concert).
I can safely say that all of this requires someone with more knowledge than
me, at least on the CDs. (I did manage to hear them at the 02 show in
London, and they were surprisingly good for a 'revival' performance. I never
listened to the recording of that show, but probably have it somewhere).
Over and out.