I believe the Gray uses a crystal cartridge, which means playback without using the Gray involves altering the cartridge impedence.
The way these discs play back best, in my experience, is with more stylus pressure than the normal Shure, etc. cantilevers can accept, even those designed for 78 playback.
From: Association for Recorded Sound Discussion List [mailto:[log in to unmask]] On Behalf Of Richard L. Hess
Sent: Wednesday, January 06, 2016 9:59 PM
To: [log in to unmask]
Subject: Re: [ARSCLIST] Translucent Blue Plastic Flexi-Discs - What do you know about these?
My two primary audio editors that perform widely different tasks and have very different capabilities can both do this: Samplitude and iZoptope RX.
On 1/6/2016 8:26 PM, Karl Fitzke wrote:
> Thanks for the interest in these discs. Great to find out more.
> I wonder if Shai uses Diamond Cut software for this task? I used to
> DC6 to correct for speed changes that were pretty linear and slow, e.g.
> batteries dying in portable cassette recorder used to record a
> professors lectures. That was like eight years ago though! Haven't
> had such issues to deal with since then, and I now see Diamond Cut is
> up to version DC8.
> Karl Fitzke
> 607-216-8070 forwards to other numbers below
Richard L. Hess email: [log in to unmask]
Aurora, Ontario, Canada 647 479 2800
Quality tape transfers -- even from hard-to-play tapes.