Disk with a k or Disc with a c?

'Disc' applies to the shape of the item. Good example is that frisbees, plates, etc are all discs. CD, DVD, Bluray are all disc-shaped and so should be named appropriately. Everything else - disk.

As far as i'm aware the convention (possible related to Apple i seem to remember) is related to whether its magnetic media or not, ie hard disk, floppy disk, compact disc, digital versatile disc, etc.

Main Entrydisk

Variant(s)
or disc Listen to the pronunciation of disc \ˈdisk\
Function
noun
Usage
often attributive
Etymology
Latin discus — more at dish
Date
1664

1 a the seemingly flat figure of a celestial body <the solar disk> barchaic discus2 any of various rounded and flattened animal anatomical structures ; especially intervertebral disk — compare slipped disk3 the central part of the flower head of a typical composite made up of closely packed tubular flowers4 a thin circular object as ausually disc a phonograph record b a round flat plate coated with a magnetic substance on which data for a computer is stored cusually disc optical disk as (1) videodisc (2) cd 5usually disc one of the concave circular steel tools with sharpened edge making up the working part of a disc harrow or plow ; also an implement employing such tools
— disk·like Listen to the pronunciation of disklike \-ˌlīk\ adjective

Main Entry
disk drive
Function
noun
Date
1963

a device for reading and writing data on a magnetic disk

'Disc' applies to the shape of the item. Good example is that frisbees, plates, etc are all discs. CD, DVD, Bluray are all disc-shaped and so should be named appropriately. Everything else - disk.

Yup +1

That gets into trouble with Sony Minidisc, for example. Thats square. And if you're counting the internal disc, then all of them are going to be with a c p
(Although as that's magneto-optical you could argue both in my interpretation for that ) )

That gets into trouble with Sony Minidisc, for example.

Nah - Minidisc is a proper noun, while disc and disk are common nouns.

It was more the logic of the choosing 'disc' not 'disk' suffix and not being round rather than the trademark as such heh (should probably have thought of an example that wasnt magneto-optical too, as thats probably the least helpful!)

According to the OED, anything goes - at least as long as it gets used enough

"A rule of thumb is that any word can be included which appears five times, in five different printed sources, over a period of five years."

http//www.askoxford.com/worldofwords/newwords/newwordsdict/

Anyone want to add "disq" to the list? Then we can have debats over disc/disk/disq. twisted

"Anyone want to add "disq" to the list? Then we can have debats over disc/disk/disq"

How about DiZq - for the teenage hacker elites