Yes, there are Blu-ray audio-only discs now! You have to try them!
The master is still the key, but Blu-ray audio-only discs are very promising and some of the ones I've heard so far are just great!
CD1 of GU024 is the (mostly) ambient one, right? You could possibly search for some of Nick Warren's Renaissance mixes. I think a couple of them have first discs that sound similar. John Digweed also has a live album with an ambient disc, though I can't recall which one (try checking discogs and cross-ref with youtube). Other than that, maybe Bedrock's old Layered Sounds offerings, or some of DMC's Back To Mine series.
Finding something similar to Phil K's Breakbeat mix for Balance will prove harder. I don't think there are any modern breakbeat mixes that sound like that one. The closest you can get are probably the old Bedrock Breaks series with offerings from DJ Hype and Meat Katie, but even those are a far cry from Phil K's style. I saw Phil live in Oz a few times at the turn of the millennium, and no one can mix breaks like he does. Closest would be Luke Chable, but I don't think he's ever done a pure breaks mix on CD before. One possibility might be the Renaissance Presents The Therapy Sessions Volumes 1 & 2, featuring Dave Seaman, Phil K (Vol 1) & Luke Chable (Vol 2).
The old progressive house/breaks style is basically dead. The mixers that championed it have moved on to different sounds, for better or worse. All the new stuff that gets classified as "progressive" is basically cheesy trance played at slightly reduced bpm. There's none of the layering or texture or seamlessness you'd find in old prog.