What characteristic of the flat shellac disc ultimately led to the cylinder format’s obsolescence in the consumer market?

Answer

Better durability, easier mass duplication, and superior playback consistency.

Shellac discs provided better physical durability, allowed for easier mass duplication through stamping, and maintained a more consistent playback speed than the cylinder format.

What characteristic of the flat shellac disc ultimately led to the cylinder format’s obsolescence in the consumer market?
inventiontechnologyaudiosound recordingCylinder