Details of Beatles Vinyl Master Recording BOX Set?


I just inherited a complete box set of the Beatles Master Recording LP set. I see them on eBay fairly often for which they sell at $1,000+. How do these differ from any other boxed LP set?

Clearly the Master Recordings are superior, or at least that is how I understand it, but what makes it better?
Deeper grooves, better vinyl, better recordings? What is it?

Thanks,
Dan
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I have been able to acquire both the MFSL set and the Blue boxed set from England. I like the early lps from the MFSL set better and the later lps sound better to me from the blue set.

Its so hard to get quite playing lps of the originals at a fair price and even harder to roll the dice and believe sellers on very expensive originals. I bought several and was burned. I have been lucky with buying low priced early pressing and believe these sound the best.

The advantage of the boxed set is good sound and most likely better and quite vinyl.
Interesting! I am now very curious about the earlier records as interpreted by MFSL. I love the quiet vinyl and the half-speed mastering theory, anyway.
In the early 90's when everyone here in NY was getting rid of LP's amongs the thousands of LP's I bought from a local store (St. MArks Sounds) was an entire collection of Japanese OBI pressings, maybe 14 titles in all.

I should compare them to the MFSL's I own.

I can imagine the guy who got rid of them wishes he hadn't.