If it's really Universal, the price on Amazon.UK is staggeringly good.
It likely includes the 6 discs of masters in the CBS box, (discs 7-10 were alternates); combined with 8 discs of Decca & Verve: Decca masters (imo her weakest period due to the lame arrangements) fit on 2 discs, & complete Verve masters was issued on a 6 disc box); + 1959's CBS Lady In Satin. Adding all 4 likely segments equals 15 discs, so that would make sense.
Despite Amazon listing this as "Decca" & "PID", from the looks of the packaging & the price, I question whether it's one of the Spain PD labels. We'll find out......... If it is, they're probably just ripping & pressing the official releases, so sound q should be fine.
BTW, re my comments on the Decca; if one is interested in BH from that time period, I recommend the Complete Commodore 2 cd set. Much better music than the easy listeningish Decca recordings & recorded in the same years by Milt Gabler who also did the Decca sides.
http://www.amazon.com/dp/B0000001NM/?tag=imwan-20