Talk:Phase-change Dual

Magneto-opticals?
It had been my impression that the "PD" drives had been CD drives that could also read/write some Magneto-optical disks. Having read about DVD-RAM the other day that those are different to MO disks because DVD-RAM are "phase-change", does this in fact mean that the PD disks weren't the same as, or otherwise weren't compatible with, MO disks either? --195.92.168.163 04:04, 25 June 2007 (UTC)
 * I think that PD drives aren't magneto-optical. There also exists CD-MO, but it is extremly rare. Urvabara 17:18, 6 July 2007 (UTC)
 * Then they can't be Magneto-Optical then. 86.178.9.171 (talk) 16:48, 24 September 2010 (UTC)


 * PD discs are hard sectored with concentric tracks like DVD-RAM and MO, but use a purely optical read/write method. —Preceding unsigned comment added by Bizzybody (talk • contribs) 06:49, 29 December 2007 (UTC)

PD acronym/brand name
I recall that this format was originally branded "PowerDisc" or PD for short but I cannot find information to underpin this. Is there any evidence for this? The Seventh Taylor (talk) 20:42, 15 October 2008 (UTC)


 * I remember also what you're stating. In my freshman year at college, I recall needing to buy these "PowerDiscs", as the prof. called 'em in art class. Since I also saw a DVD-RAM logo on the drives, I just paid, I think, what? $50? Maybe higher than that, for one DVD-RAM disc that lasted 'til 2006, when I sat on it and cracked it. (Strangely, my first CD-R from 1994 also met the same fate.) Other than that professor, I don't see nor find any citations that calls it PowerDisc, either. BTW, the DVD-RAM was 5.2 GB double-sided, and I never had to buy another disc all during my four years of college (for art, anyways, still needed ZIP100s and floppies for other classes). Apple8800 (talk) 08:40, 11 December 2010 (UTC)

Where does the 'Dual' come from? I can't see anything that is 'dual' about the disc. 109.156.49.202 (talk) 14:05, 17 November 2011 (UTC)
 * Not sure, but the PD acronym and the logo were probably a given. I suspect they were forced to change the PowerDisc name in some trademark dispute. The Seventh Taylor (talk) 22:16, 17 November 2011 (UTC)
 * The dual may refer to the two states that phase-change media can have. (amorphous and polycrystalline?) The Seventh Taylor (talk) 10:07, 13 July 2013 (UTC)