Thanks, This is all very good to know, as I don't listen to very much  
recorded classical music as I used to.
One more question - what is this term "shaded dogs?" as in

"These original session tapes while being closest to what was  
originally recorded in the concert hall, in many cases do not resemble  
the original shaded dogs in sound."
  from the Chesky site...

Lou Judson  Intuitive Audio

On Feb 12, 2006, at 5:47 PM, phillip holmes wrote:

> They compressed it, rolled off the bass and purposely introduced  
> distortion in the inner grooves.  It was a variable EQ process too,  
> boosting lows in quiet passages and rolling off treble near the inner  
> grooves.  I don't know why, they just did.
> From Chesky records:
> body_librarydetails.cfm%3Fnewsid%3D171+rca+dynagroove+process&hl=en&gl= 
> us&ct=clnk&cd=5
> This reissue choice by Chesky is an especially interesting one. The  
> original shaded dog release of this recording (catalog no. LSC-2614)  
> was the first classical recording by RCA issued with the Dynagroove  
> process