BOTR remastered by same team that did the Beatles remasters. See http://paulmccartney.com for info or to buy.
Available in just about every format you might want.
The big news: remastered in 24/96, downloadable in wav format. It's also available at Amazon, but not as a hi-res download or individual disc. (Doesn't that tell us something about the place of hi-res digital music in mainstream marketing, i.e., nowhere.)
In fact, the hi-res remaster is even offered in both "limited" (light volume compression, as on the Beatles remasters) and unlimited (no volume compression, dynamics of original master) downloads.
I've obtained both hi-res versions.
It was priced at $9.99 for hi-res, but as of last notice they've upped the price to $19.99. But I wouldn't be surprised if they change the price again, as they already gone up, come down, and gone up again.
What do I think of it?
Unlimited version: I like the sound. In relation to earlier versions, there is more audible detail here, and an overall clearer, cleaner sound. Dynamics are improved - if something is supposed to "jump out at you" in the mix, it really does. More space or air between instruments - you can really hear everything, even it isn't in the foreground in the mix. It makes the standard release sound a bit "congested" in comparison. There's also more thump or slam to drums.
As far as the sound of the limited version:
Pros: Louder (obviously), by what seems like about 3db (didn't measure). But seriously, the most noticeable difference is that Paul's bass and drums are louder and more prominent than on the unlimited. That on it's own is sort of a good thing, I think it matches the "sound" intended for the album.
Cons: But because of the limiting, the balance between the instruments in the mix is negatively effected. Example: the guitar in the opening of "Mamunia" - you can hear it in both versions, but in the Limited version it is more in the background, more overshadowed by the prominent bass.
Overall I like the limited, but not as much as the unlimited. The limiting is not heavily done, and it sounds fine. I think I might like the limited version better for casual or background listening, or on an mp3 player. It's definitely not as good for critical listening.