As Matt wrote the Audiophile Version is some 1.5 TBytes. Even most fast WAN speeds are less than 100Mbits/sec. Allowing for protocol control messages the odd interrupt etc. you could multiply the 1.5Tbytes by 10 giving you 15 Tbits of data to be handled. Even at 100 Mbits/sec we are still looking at a huge download that will take considerable time. About 150,000 seconds or just under 2 days if you’re lucky (assuming no other traffic).
Now so far we have only looked at one client. Now imagine the position for PG. say they offered the service and 1000 people took it up. PG would be up for a huge communications cost let alone the servers to deliver it. Even if they could and had a 1Gbit link it would take at least 15,000 seconds of uninterrupted upload per Audiophile download at 1Gbit/sec. If you had 3 concurrent download sessions everyone would slow down.
Over my working career I had a number of discussions with people and companies that spent big money upgrading links only to find download speeds were often dictated by the other end.
The way I calculate it in a nutshell it would impractical to even offer such a service.
My thoughts. (I could not be bothered to calculate the delivery time as it would still depend on many other factors)
See this tool
https://www.download-time.com/ it might help but it has no margin for error or link sharing.
Tony