In 1948 Records (CBS) Introduced the 12-inch unbreakable vinyl discs that had a playing time of between 25 to 30 minutes. The standard shellac disc revolved at 78-rpm. the 12-inch 78-rpm disc had to be changed whether automatically or manually, every five minutes, thus, breaking up the continuity of longer moving parts. The new12-inch format LP, revolving at 33⅓ rpm, held the average symphony, sonata, or quartet on a single side. The new discovery of the vinyl discs had a much quieter surfaces than the shellac discs. RCA Victor counteracted with its own microgroove records: the 7-inch 45-rpm vinyl disc, each 45-rpm disc held approximately as much music as the 12-inch 78-rpm disc, the package was smaller.1950, a pattern had began to form, as the 12-inch LPs were made specifically for classical works only. These LPs became known as 12-inch recorded albums. 45-rpm vinyl records was made specially for individual popular songs. Extended-play 45s were also developed and was indeed, a very successful commodity on the commercial market. The LP opened up an entirely new market; this new technology was not just for the older record collectors but also to capture a new generation of record buyers. But of all the records made, the 45rpm record's had it's greatest success with the jukebox during the rock and roll era. The new 7 inch 45rpm format was more favoured by the young rather than the LP's because the 45rpm records was cheaper to buy than a 33⅓ long playing 12inch album. Right around the world and in the United Kingdom and the United States of America sales of 45rpm overtook all other format of the vinyl recorded discs. Of late the 12in 45rpm recording vinyl has become a collector item ranging £30.00 to £100.00 in price. |
