It seems that most of the CDs in your town’s last remaining music store are old albums from bands that your parents liked years ago. That may annoy you, but music from these albums keeps the music industry profitable.

Music from these catalogs keeps the music industry profitable.

Explanation:

The records and CDs that are seen in music stores comes from a catalog of music that each record company keeps. The catalogs are copyrighted to keep the integrity of the artists. If they weren't copyrighted anyone could take the music and use it as their own and record it.

Every genre of music has its own fans. The older generation still buys music from artists from their generation. They keep these in stock because they know people will purchase the music.