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Discs hold about seven times as much information as CD-ROMs.
May require special hardware. Development of recordable DVD format stunted by standards war. You've seen people watching Austin Powers on their laptops. DVD's 4.7GB of storage far surpasses that of CD-ROM's 650MB, though the discs are the same small size. DVD movie players, which vendors hope will supplant VCRs in home entertainment systems, can't read DVD-ROMs.