Documents on discs? (7)
I believe the answer is:
records
I believe this clue is a double definition.
'documents' is the first definition.
(I know this)
'discs?' is the second definition.
(I know this)
'on' is the link.
(Other definitions for records that I've seen before include "Archives" , "unsurpassed performances" , "Sets down in writing or preserves in sound" , "Discs" , "Makes written note" .)