Blu-ray vs. DVD

Blu-ray
DVD

Blu-ray and DVD are media storage formats, most commonly used for movies. DVD is the older format and Blu-ray is the more recent, high definition format with several improvements over traditional DVDs.

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Blu-ray

User Rating (200):

DVD

User Rating (61):
Storage Capacity 25 GB (single layer), 50 GB (double layer), 100/128 GB (BDXL) 4.7/8.5 GB
Laser wavelength 405 nm (blue-violet laser) 650 nm (red laser)
Numerical Aperture 0.85 0.6
Maximum Bitrate (Raw data) 53.95 Mbit/s 11.08 Mbit/s
Maximum Bitrate (Audio+Video) 48 Mbit/s 10.08 Mbit/s
Maximum Bitrate (Video) 40 Mbit/s 9.8 Mbit/s
Interactivity Blu-Ray Disc Java Rudimentary
Maximum video resolution 1080p High Definition TV 480p Extended Definition TV
Region Code 3 Regions 6 regions
Hardcoating of disc Mandatory Optional
Content protection system AACS-128bit / BD+ CSS 40-bit
Encoding MPEG-2, MPEG-4 AVC (H.264), and VC-1 Various
Mandatory video codecs MPEG-4 AVC (H.264) / VC-1 / MPEG-2 MPEG-1 / MPEG-2
Dolby Digital audio codec Mandatory @ 640 kbit/s Mandatory @ 448 kbit/s
DTS audio codec Mandatory @ 1.5 Mbit/s Optional @ 1.5 Mbit/s
Dolby Digital Plus audio codec Optional @ 1.7 Mbit/s N/A
DTS-HD High Resolution audio codec Optional @ 6.0 Mbit/s N/A
Linear PCM audio codec Mandatory Optional
Dolby TrueHD audio codec Optional N/A
DTS-HD Master audio codec Optional N/A
HDMI video output Native Upscaling
HDMI audio output Supports up to 8 channels Supports up to 6 channels

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