Which on is correct? Or how would you say?
(a music CD etc.)

I bought the CD of it.
I bought it on CD.

Question

Which on is correct? Or how would you say?
(a music CD etc.)

I bought the CD of it.
I bought it on CD.

Answer

I would say "I bought the CD" or "I bought their CD" personally.

Answer

In colloquial speech, either of these could be said. However, it would be more common to say the second option, "I bought it on CD."