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Professionals record at 30 ips on 3600 ft reels that will fit 22.5 minutes (one side only). A 3600 ft reel can hold up to 48 hours if recorded in mono (4 sides) at 15/16 ips. Compact disc: Digital Earlier discs: up to 74 minutes (or up to 650 MB of data files) Later discs: up to 80 minutes (or up to 700 MB of data files) Recordable discs: Digital
The adoption of EFM in June 1980 allowed 30 percent more playing time that would have resulted in 97 minutes for 120 mm diameter or 74 minutes for a disc as small as 100 millimetres (3.9 in). Instead, the information density was lowered by 30 percent to keep the playing time at 74 minutes.
These revolutionary discs were designed for playback at 33 + 1 ⁄ 3 rpm and pressed on a 30 cm diameter flexible plastic disc, with a duration of about ten minutes playing time per side. [2] Victor's early introduction of a long-playing record was a commercial failure for several reasons including the lack of affordable, consumer playback ...
• Marketplace lists over 35 million items (largest physical music items marketplace online). • 1 billion edits. PD/CC0 [10] Free API and XML data dumps. [11] SongLyrics Updated daily with lyrics, reviews, features, meanings and more. 400,000,000 400,000,000 CC: Yes Internet Archive: Large live music archive, hosts hundreds of free music ...
Three vinyl records of different formats, from left to right: a 12 inch LP, a 10 inch LP, a 7 inch single. A phonograph record (also known as a gramophone record, especially in British English) or a vinyl record (for later varieties only) is an analog sound storage medium in the form of a flat disc with an inscribed, modulated spiral groove.
The LP (from long playing [2] or long play) is an analog sound storage medium, specifically a phonograph record format characterized by: a speed of 33 + 1 ⁄ 3 rpm; a 12- or 10-inch (30- or 25-cm) diameter; use of the "microgroove" groove specification; and a vinyl (a copolymer of vinyl chloride acetate) composition disk.
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Each sector (or "timecode frame") consists of a sequence of channel frames. These frames, when read from the disc, are made of a 24-bit synchronization pattern with the constant sequence 1000-0000-0001-0000-0000-0010, not present anywhere else on the disc, separated by three merging bits, followed by 33 bytes in EFM encoding, each followed by 3 merge bits.