Mq"B-1" is not at all what people think it is, on either side of the debate, or even what "experts" or "insiders" think it is (or was or whatever!).
It does have buried in it somewhere a clever, non patent-able, "observation", about digital audio that had the potential to
increase the perceived quality of digital recordings. This was obfuscated by numerous other proprietary "patent-able technologies", and marketing.
I will leave it to the listener to decide whether this was of sonic benefit or detriment...
Customers did however insist on having it, just like a lot of other exciting Tech.