Help in finding great Jazz thats well recorded

Im a old school rocker that was converted to the world of jazz about 5 years ago.Ive aquired a small library of approx 200+ titles and growing every week.Im running redbook/SACD only and have no desire to try the LP thing again or venture into downloads.The other day another audio friend wanted to come hear my system as its been redone the past 6 months,I started to go through my jazz in search of great recordings before he arrived.Keep in mind he was coming to hear the system really not the tunes.Im guessing I had a handful of what I would call great recordings that would show case my system, the rest wasnt.I know what my system is capable of and most of the 50s/60s recordings I have seem "HIFI" at best and thats OK,but what Im asking or seeking is this.Really great recorded jazz..Im open to any suggestions..labels/artist/redbook/sacd examples etc