Rauliruegas: Finally an answer I can live with; it's mainly in the cartridge itself! I know Audio Technica was instrumental in producing the Telarc recording; I have other older cartridges which can track the cannons, for exampe vintage Shures, and on many brands of TTs such as Onkyo, Kenwood, Technics, etc. of the 70's and 80's. TTs with Servotracer arms I also have found can track the recording, as on vintage Denon or Sony TTs. My Rega RP8 with Clearaudio Virtuoso is not up to the task, nor are other modern cartridges from Denon, Ortofon, Sumiko, and Rega, among others.