The ‘c’ and ‘k’ make a difference.
disc: phonograph record
disk: a thin circular object
Are the two used interchangeably?
Can they be used interchangeably?
Both are commonly used for CDs, DVDs, bones, celestial bodies, and other things.
What objects are usually known as a disc?
Any optical media
What objects are usually known as a disk?
Any magnetic media
An example of a disc
An example of a disk