HP ProBook 4420s HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Mai - Page 129
DVD ROM Drive specifications, DVD±RW SuperMulti Double-Layer Drive with LightScribe specifications - ram
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500-GB* 320-GB* 250-GB* *1 GB = 1 billion bytes when referring to hard drive storage capacity. Actual accessible capacity is less. Actual drive specifications may differ slightly. NOTE: Certain restrictions and exclusions apply. Contact technical support for details. DVD ROM Drive specifications Applicable disc Random access time DVD CD Cache buffer Data transfer rate CD-R (24X) CD-RW (10X) CD-ROM (24X) DVD (8X) Multiword DMA mode 2 DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18, CD-ROM (Mode 1 and 2), CD Digital Audio, CD-XA ready (Mode 2, Form 1 and Form 2), CD-I (Mode 2, Form 1 and Form 2), CD-R, CD-RW, Photo CD (single and multisession), CD-Bridge < 125 ms < 100 ms 512 KB 3600 KB/s (150 KB/s at 1X CD rate) 1500 KB/s (150 KB/s at 1X CD rate) 3600 KB/s (150 KB/s at 1X CD rate) 10,800 KB/s (1,352 KB/s at 1X DVD rate) 16.6 MB/s DVD±RW SuperMulti Double-Layer Drive with LightScribe specifications Applicable disc Read Write Random access time DVD CD Cache buffer Data transfer rate 24X CD-ROM 8X DVD-ROM CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM, CD-ROM XA, MIXED MODE CD, CD-I, CD-I Bridge (Photo-CD, Video CD), Multisession CD (Photo-CD, CD-EXTRA, Portfolio, CD-R, CD-RW), CD-R, CD-RW, DVDROM (DVD-5, DVD-9, DVD-10, DVD-18), DVD-R, DVD-RW, DVD+R, DVD +RW, DVD-RAM CD-R and CD-RW, DVD+R, DVD+RW, DVD-R, DVD-RW, DVD-RAM < 230 ms < 175 ms 2 MB 3,600 KB/sec 10,800 KB/sec DVD ROM Drive specifications 121