At the time the LP was introduced, nearly all phonograph records for home use were made of an abrasive (and therefore noisy) shellac compound, … See more

With the advent of sound film or "talkies", the need for greater storage space made 33+1⁄3 rpm records more appealing. Soundtracks – … See more

The close spacing of the spiral groove that allowed more playing time on a 33+1⁄3 rpm microgroove LP also allowed a faint pre-echo See more

• Record production portal
• Album cover
• Conservation and restoration of vinyl discs
• Extended play (EP) See more

Despite some earlier experiments and attempts at commercial marketing, the Long Play format did not begin to enjoy commercial popularity until the early 1950s. See more

Reel-to-reel magnetic tape recorders posed a new challenge to the LP in the 1950s, but the higher cost of pre-recorded tapes was one of several factors that confined tape to a niche market. Cartridge and cassette tapes were more convenient and less expensive … See more

The following are some significant advances in the format:
• Helium-cooled cutting heads that could withstand higher levels of high frequencies (Neumann SX68); … See more