Compaq Presario CQ20-300 Compaq Presario CQ20 Notebook PC - Maintenance and Se - Page 86
Compaq Presario CQ20-300 - Notebook PC Manual
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Specifications DVD±RW and CD-RW SuperMulti Double-Layer Drive and DVD±RW and CD-RW SuperMulti Double-Layer Drive with LightScribe specifications Applicable disc Access time Random Cache buffer Data transfer rate 5X DVD-RAM 8X DVD±RW 8X DVD±R 16X CD-R 16X CD-RW (High Speed) Read: Write: CD-ROM, CD-R, CD-RW, High Speed CD-RW, Ultra & Ultra+ Speed CD-RW, DVD, DVD±R/RW, DVD±R, DVD-RAM DVD-RAM (Ver.2), DVD±R, DVD±RW, DVD±Dual, CD-R, and CD-RW CD DVD < 130 ms < 150 ms 2 MB 6,750 KB/sec 10,800 KB/sec 10,800 KB/sec 3,600 KB/sec 1,500 KB/sec System DMA specifications Hardware DMA System function DMA0 Not applicable DMA1* Not applicable DMA2* Not applicable DMA3 Not applicable DMA4 Direct memory access controller DMA5* Not applicable DMA6 Not assigned DMA7 Not assigned *PC Card controller can use DMA 1, 2, or 5. 6-4 Maintenance and Service Guide