Answer:
compatibility
Explanation:
The Digital Compact Cassette is an innovation that is showing compatibility because it is not only bringing something new to the customer (the ability to record and playback), but also giving the customer the possibility of playing old cassette tapes in the new format.
In simple words, the DCC is compatible with older tapes, which gives it no only a value as a new product, but also a value as a product that replaces and old product (which is not necessarily the same, many new products do not replace old product, the old product simply disappears).