storage medium vs data-storage medium

storage medium and data-storage medium both are nouns.

Word	Noun	Adjective	Verb	Adverb
storage medium	Yes	No	No	No
data-storage medium	Yes	No	No	No

As nouns, storage medium and data-storage medium are synonyms defined as:

storage medium and data-storage medium: a medium for storing information

storage medium (noun)	data-storage medium (noun)
a medium for storing information	a medium for storing information