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What are the features and speeds of DVD-ROM drives?

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What are the features and speeds of DVD-ROM drives?

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Unlike CD-ROM drives, which took years to move up to 2x, 3x, and faster spin rates, faster DVD-ROM drives began appearing in the first year. Most 1x DVD-ROM drives have a seek time of 90-200 ms and access time of 100-250 ms. 1x DVD-ROM drives provide a data transfer rate of 1.321 MB/s (11.08*10^6/8/2^20) with burst transfer rates of up to 12 MB/s or higher. The data transfer rate from a DVD-ROM disc at 1x speed is roughly equivalent to a 9x CD-ROM drive (1x CD-ROM data transfer rate is 150 KB/s, or 0.146 MB/s). DVD spin rate is about 3 times faster than CD (that is, 1x DVD ~ 3x CD), but almost all DVD-ROM drives increase motor speed when reading CD-ROMs, achieving 12x or faster performance. 2x DVD-ROM drives are available (providing a transfer rate of 22.2 Mbps or 2.6 MB/s from DVDs, equivalent to an 18x CD-ROM rate). Most 2x DVD-ROM drives read CD-ROMs at 20x (max) speeds and higher. 4x, 4.

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Most DVD-ROM drives have a seek time of 100-200 ms, access time of 150-250 ms, and data transfer rate of 1.3 MB/s (11.08*10^6/8/2^20) with burst transfer rates of up to 12 MB/s or higher. The data transfer rate from DVD-ROM discs is roughly equivalent to a 9x CD-ROM drive. DVD spin rate is about 3 times faster than CD, but almost all DVD-ROM drives increase the speed when reading CD-ROMs, achieving 12x or faster performance. 2x DVD-ROM drives are available (providing a transfer rate of 22.2 Mbps or 2.6 MB/s from DVDs, equivalent to an 18x CD-ROM rate) and 5x drives have been announced, although they don’t achieve a true sustained transfer rate of 5x (55.4 Mbps). Most 2x DVD-ROM drives read CD-ROMs at 20x (max) speeds and higher, and most 5x drives read CD-ROMs at 32x (max). Connectivity is similar to that of CD-ROM drives: EIDE (ATAPI), SCSI-2, etc. All DVD-ROM drives have audio connections for playing audio CDs. No DVD-ROM drives have been announced with DVD audio or video outputs (wh

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Unlike CD-ROM drives, which took years to move up to 2x, 3x, and faster spin rates, faster DVD-ROM drives began appearing in the first year. 1x DVD-ROM drives provide a data transfer rate of 1.321 MB/s (11.08*10^6/8/2^20) with burst transfer rates of up to 12 MB/s or higher. The data transfer rate from a DVD-ROM disc at 1x speed is roughly equivalent to a 9x CD-ROM drive (1x CD-ROM data transfer rate is 150 KB/s, or 0.146 MB/s). DVD physical spin rate is about 3 times faster than CD (that is, 1x DVD spin ~ 3x CD spin), but most DVD-ROM drives increase motor speed when reading CD-ROMs, achieving 12x or faster performance. A drive listed as “16x/40x” spins a DVD at 16 times normal, or a CD at 40 times normal. DVD-ROM drives are available in 2x, 4x, 4.8x, 5x, 6x, 8x, 10x, and 16x speeds, although they usually don’t achieve sustained transfer at their full rating.

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Unlike CD-ROM drives, which took years to move up to 2x, 3x, and faster spin rates, faster DVD-ROM drives began appearing in the first year. 1x DVD-ROM drives provide a data transfer rate of 1.321 MB/s (11.08*10^6/8/2^20) with burst transfer rates of up to 12 MB/s or higher. The data transfer rate from a DVD-ROM disc at 1x speed is roughly equivalent to a 9x CD-ROM drive (1x CD-ROM data transfer rate is 150 KB/s, or 0.146 MB/s). DVD physical spin rate is about 3 times faster than CD (that is, 1x DVD spin ~ 3x CD spin), but most DVD-ROM drives increase motor speed when reading CD-ROMs, achieving 12x or faster performance. A drive listed as “16x/40x” spins a DVD at 16 times normal, or a CD at 40 times normal. DVD-ROM drives are available in 2x, 4x, 4.8x, 5x, 6x, 8x, 10x, and 16x speeds, although they usually don’t achieve sustained transfer at their full rating. The “max” in DVD and CD speed ratings means that the listed speed only applies when reading data at the outer edge of the disc,

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Unlike CD-ROM drives, which took years to move up to 2x, 3x, and faster spin rates, faster DVD-ROM drives began appearing in the first year. Most 1x DVD-ROM drives have a seek time of 90-200 ms and access time of 100-250 ms. 1x DVD-ROM drives provide a data transfer rate of 1.321 MB/s (11.08*10^6/8/2^20) with burst transfer rates of up to 12 MB/s or higher. The data transfer rate from a DVD-ROM disc at 1x speed is roughly equivalent to a 9x CD-ROM drive (1x CD-ROM data transfer rate is 150 KB/s, or 0.146 MB/s). DVD spin rate is about 3 times faster than CD (that is, 1x DVD ~ 3x CD), but almost all DVD-ROM drives increase motor speed when reading CD-ROMs, achieving 12x or faster performance. 2x DVD-ROM drives are available (providing a transfer rate of 22.2 Mbps or 2.6 MB/s from DVDs, equivalent to an 18x CD-ROM rate). Most 2x DVD-ROM drives read CD-ROMs at 20x (max) speeds and higher. 4x, 4.8x, 5x, and 6x drives are also appearing, although they usually don’t achieve a sustained transf

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