Cryptic verse in music recording (5)

I believe the answer is:
coded
'cryptic' is the definition.
(I've seen this in another clue)
'verse in music recording' is the wordplay.
'verse' becomes 'ode' (ode is a type of poem or verse).
'in' means one lot of letters goes inside another.
'music recording' becomes 'cd' (I can't justify this - if you can you should believe this answer much more).
'ode' going into 'cd' is 'CODED'.
Can you help me to learn more?
(Other definitions for coded that I've seen before include "Encrypted, prearranged for secrecy" , "Enciphered" .)
