Can you perhaps list the years and the various editions ?
From the site:
"This is re-mastered from the analogue tapes and the same or better than the more expensive "gold disc"."
"This is out of print in the US now, which is really silly, since it's a Grammy nominee - in addition to still being used by audio companies to test their equipment! To maintain the audio quality of our own imports, we can proudly say that our version here is identical to - or better than - the audiophile version released a while back. Ours is also completely re-mastered from the original analog source, and every bit as good as the "gold" version. Maybe even better, since Janis oversaw this one!"
Then there is also the original issue from 1992.
In essence 3 versions as far as I know.