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Now blue laser technology is driving the future of optical storage. With the introduction of high definition television (HDTV) broadcasts and increasing use of high definition recording creating valuable content, Blu-ray and HD DVD optical media provide the high capacities required by these new high definition formats. These formats allow users to record crystal clear, superior images as well as benefit from the vast data storage capabilities of up to 50 gigabytes.
Compare features and capacities of high definition formats using the chart below.
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Specifications |
Recorder Drive |
Recorder Drive |
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Single-layer capacity |
25GB 2 hrs of MPEG2 HD |
15GB 80 min of MPEG2 HD |
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Dual-layer capacity |
50GB 4 hrs of MPEG2 HD |
30GB 160 min of MPEG2 HD |
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Disc size |
12cm disc compatible with current optical formats and 8cm disc that’s ideal for portable high-def recording |
12cm disc compatible with current optical formats |
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Backwards read compatibility |
Blu-ray hardware is backwards compatible with current CDs and DVDs |
HD DVD hardware is backwards compatible with current CDs and DVDs |
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Video codecs |
MPEG2, VC-1, MPEG4 AVC high profile |
MPEG2, VC-1, MPEG4 AVC high profile |
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Audio codecs |
Dolby Digital, DTS (DTS-HD), PCM |
Dolby Digital, DTS (DTS-HD), PCM |
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More information |
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