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Non-standard CD-ROM discs also exist that store up to 900 MB of data, or 99 minutes of audio. Today, a standard CD-ROM disc can store up to 700 MB of data, or 80 minutes worth of audio. The first CD-ROM disc introduced to the public had a storage capacity of 553 MB. In 1984, Denon and Sony introduced the CD-ROM format to the public at a Japanese computer show. Denon expanded on the CD-DA ( compact disc digital audio) format to create the CD-ROM format, allowing it to store any data and not only audio. The compact disc was first developed by Philips and Sony in 1982. The below figures are averages you can expect to find on each speed of CD-ROM drive. USB - Interface most commonly used to connect external disc drives.īelow are the standard transfer rates and access times for CD-ROM drives. ![]()
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