Wondering if I got lucky? Found a cd of one of my favorite acoustic groups " acoustic alchemy" and after the first song I was amazes by the dymanics and sound quality it was far, far better than a reg. Cd . Upon inspecting the lable I noticed it was marked " digital master" not digilaly mastered like most are. Is this possible like old vynal " master recordings" that were first pressings and not used to duplicate but sold as a master recording at around 40.00 bucks instead of the std. Pricing of 6.00 bucks for a reg. Alblem in the day? The sound is truly incredible! Just courious.