The 6-CD "BBC Tapes" collection has been re-issued with new artwork. I think that some of these recordings have been out of print for a while. If you're not familiar with them, they are all taken from various BBC sessions and concerts over the years and cover a range of material from early pieces (including a great live "Hells Angels") through full band material from "HQ" to some great duo stuff with Andy Roberts. Most of the material is of studio quality though there are a few tracks taken "off air" with the subsequent radio artifacts you'd expect.
It's a very satisfying set, and one that I rediscovered lately having not listened to any of it for a couple of years.
You can order it directly from Roy's web site and get the full set for £45, though you can also buy the individual CDs for £9 each. If you do the maths you'll see it makes sense to go for the set.