the last one they did for the wire in that cool fold-out jacket was great
You're right, that was ace.
I went through a period last year of only listening to that (while I was writing a research proposal).
Have you heard the Room 40 tapes? Three so far, more to come.
No track listings, which makes for fun

(Though I do have to stop buying tapes from the internet, as now I have no money...)
EDIT: yes, Track 25 is good!