Although the age of music CDs is slowly slipping by, it is fun to look back at an amazing product that Connert Media’s Infomedia created.
The below Billboard article describes the product that too off for several years.
Billboard Magazine, June 6, 1987, Jim Bessman:
Consumers Can Buy Listings Of 14,000 Albums – Infomedia Offers CDE Catalog Service
NEW YORK Data-research firm Infomedia is making its CD catalog trade service available to consumers.
The Detroit-based company offers retailers 20 to 30-piece catalog packets for in-store sale and also sells it listings through direct mail trade ads, retail display posters, and word of mouth. Until now, its publications were trade sources used sole by retailers and distributors.
“We’ve found that a lot of consumers who collect CDs want reference material to help them collect more of them or just keep track of what they have,” says Infomedia manager Terry Pochert. “They end up marking off the ones they either already have or want with a highlighter and then pass [the catalogs] around in swap clubs or whatever.” 
- Billboard Magazine, June 6, 1987, Jim Bessman – Consumers Can Buy Listings Of 14,000 Albums – Infomedia Offers CDE Catalog Service (PDF)