I am not entirely sure what a 'hybrid' CD is, but this one arrived today (supposed to be able to play on surround sound as well as plain stereo). I have an ageing HiFi system and had been thinking about buying a new one. Anyway, I put this CD on and could not believe what I was hearing. It sounded like the instruments were in the room. I could hear keyboard keys hitting the beds and fingers gliding on strings. The sound, as a recording, is astonishing. I invited a neighbour in to listen and we just stood there looking at the speakers as though they were doors that might open. The music interpretation of the concerti I find a little staid or stiff. I have a 1979 vinyl recording by I Musici (Philips 9500 603) which is awesome, the violins soar. I've never seen another version of these concerti and I always wanted a CD version and so this comes as a nice surprise. I don't think this music is often recorded. I'm very impressed (perhaps stunned is more accurate) with the sound quality of this CD and am certain to play it many times just to see what CDs are capable of. The CD comes with 3 cello sonatas as well. Bargain. I don't know these, but I warmed to them immediately, the playing is quite mesmerizing. The whole CD is 'solemn'. For the Concerti Scarlatti asks for 'grave' in places but I wonder if he means so solemn? I don't know, but I'm giving the CD a thumbs up. I'll mention the CD case (I get so many where the sprue holding the cd is broken that's it's worth mentioning when it isn't!): the case with this Scarlatti recording is the strong type that stands up to being opened and closed more than once.