Part of a fin. portfolio

• Modern albums
• Records, now
• Music album media before MP3s: Abbr
• They're often stored in towers
• They get burned nowadays
• Recordings that can be "ripped": Abbr
• Long-term investments, for short
• Recordings in jewel cases: Abbr
• Music purchases stored in wallets

Wiktionary Word definitions in Wiktionary
n. (plural of CD English)