Are you sure you're looking at an RVG mixed Birth of the Cool? That album was recorded in - what 1949, on Capital. The RVG albums you're listing are Prestige dates from about 1955 on. I'm pretty sure RVG was still in high school when BOTC was recorded.
The RVG re-masters are alright. They're hit and miss though. In general its stuff you listen to for the music - which is spectacular - but not for the hi-fi quality.
The RVG re-masters are alright. They're hit and miss though. In general its stuff you listen to for the music - which is spectacular - but not for the hi-fi quality.