Microgroove disc
AKA
45s, LP, record, vinyl
Era
1948–
Format
analog
Developed by
Columbia Records
(Max) Capacity
7": 3 minutes (per side)
10": 15 minutes (per side)
12": 25 minutes (per side)
Size
7", 10", 12"
Fun facts
- This format is an updated verson of the gramophone disc and was adopted as the new standard by the entire record industry
- The most well-known version of this format today is a 12” disc played at 33 ⅓ rpm (revolutions per minute)
- An earlier version of this format was created by RCA Victor in 1931, intended to use as transcription discs
