Gareth Magennis wrote:
"Don Pearce" wrote in message
...
On Wed, 29 Jun 2011 12:53:41 -0400, Frank
wrote:
And could otherwise knowledgeable people please learn the difference
between disk and disc?
A disk, as in a hard disk drive (HDD) or a floppy (flexible)
diskette, is magnetic.
A disc, as in a CD (Compact Disc), DVD, or BD (Blu-ray Disc), is
optical.
In summary, if it's optical, it's disc. If it's magnetic, then it's
disk.
Thank you and have a good day!
Well, I'm going to disagree. Disk and disc are simply alternative
spellings. More specifically disk is a US and Canada-preferred
spelling of the English word disc.
I assume the word comes from the latin "discus".
Which supports your assumption that us Brits got there first, and you
North Americans *******ised it. 
Gareth.
Yes. I don't think there is any official difference between, "disc" and
"disk". Any more than there is an official difference between, "Mike, and,
"Mic".