Carlos Kleiber was an "interesting" case. His dad was Erich Kleiber who was an important conductor in the the first half of the 20th century. But a lot of people think his biological father was Alban Berg. He was a fantastically gifted conductor but "personal issues" kept him from making many recordings, or holding a steady job. He is one of those musicians about whom it is said "he canceled more concerts than he played."
When he did make recordings they were a pretty big deal, and he burst on the scene in the mid-70s with what was at the time a fairly revolutionary performance of the warhorse of all warhorses: Beethoven's Fifth.

DSD rip from SACD
The performance is fast, like breakneck period instrument fast before that was a thing, in places. In others it is luxuriously slow. But always superbly detailed, fabulously played, even by Vienna Philharmonic standards and exciting as heck. It is on a lot of people's short list for the preferred performance of a piece that has been performed probably more than any other, although for me it is a little further down the list. YMMV.