Related Clues:

• The "D" in "CD"
• The "D" in CD
• Floppy ___
• Compact ___ player
• The ''D'' in ''CD''
• Virtually every coin
• Some command is countermanded by Ring
• Hockey puck, e.g
• Blu-ray storage unit
• Nilla Wafer, for one
• Pancake, for one
• Brake rotor
• Plate, e.g
• Poker chip, for one
• Record, or, read differently, a hint to this puzzle's theme