No, HD-DVD (previously known as AOD) is the name of a competing next-generation optical disc format developed by Toshiba and NEC. The format is quite different from Blu-ray, but also relies heavily on blue-laser technology to achieve a higher storage capacity. The format is being developed within the DVD Forum as a possible successor to the current DVD technology.
What's the difference between Blu-ray and HD-DVD?
Parameters BD-ROM HD-DVD-ROM Storage capacity (single-layer) 25GB 15GB Storage capacity (dual-layer) 50GB 30GB Laser wavelength 405nm 405nm Numerical aperture (NA) 0.85 0.65 Protection layer 0.1mm 0.6mm Data transfer rate (1x) Data transfer rate (movie application) 36.0Mbps 54.0Mbps (1.5x) 36.55Mbps 36.55Mbps
Video compression MPEG-2 MPEG-4 AVC VC-1 MPEG-2 MPEG-4 AVC VC-1
Video compression MPEG-2 MPEG-4 AVC VC-1 MPEG-2 MPEG-4 AVC VC-1
Blu-ray, also known as Blu-ray Disc (BD) is the name of a next-generation optical disc format jointly developed by the Blu-ray Disc Association (BDA), a group of the world's leading consumer electronics, personal computer and media manufacturers (including Apple, Dell, Hitachi, HP, JVC, LG, Mitsubishi, Panasonic, Pioneer, Philips, Samsung, Sharp, Sony, TDK and Thomson). The format was developed to enable recording, rewriting and playback of high-definition video (HD), as well as storing large amounts of data. A single-layer Blu-ray Disc can hold 25GB, which can be used to record over 2 hours of HDTV or more than 13 hours of standard-definition TV. There are also dual-layer versions of the discs that can hold 50GB.
Bottom line. Right now Blu-ray holds more has more support. My money is on Blu-ray!
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1 Is Blu-ray the same thing as HD-DVD?
No, HD-DVD (previously known as AOD) is the name of a competing next-generation optical disc format developed by Toshiba and NEC. The format is quite different from Blu-ray, but also relies heavily on blue-laser technology to achieve a higher storage capacity. The format is being developed within the DVD Forum as a possible successor to the current DVD technology.
What's the difference between Blu-ray and HD-DVD?
Parameters
BD-ROM HD-DVD-ROM
Storage capacity (single-layer) 25GB 15GB
Storage capacity (dual-layer) 50GB 30GB
Laser wavelength 405nm 405nm
Numerical aperture (NA) 0.85 0.65
Protection layer 0.1mm 0.6mm
Data transfer rate (1x)
Data transfer rate (movie application)
36.0Mbps
54.0Mbps (1.5x)
36.55Mbps
36.55Mbps
Video compression MPEG-2
MPEG-4 AVC
VC-1
MPEG-2
MPEG-4 AVC
VC-1
Parameters
BD-R HD-DVD-R
Storage capacity (single-layer) 25GB 15GB
Storage capacity (dual-layer) 50GB 30GB
Laser wavelength 405nm 405nm
Numerical aperture (NA) 0.85 0.65
Protection layer 0.1mm 0.6mm
Data transfer rate (1x)
36.0Mbps
36.55Mbps
Video compression MPEG-2
MPEG-4 AVC
VC-1
MPEG-2
MPEG-4 AVC
VC-1
Parameters
BD-RE HD-DVD-RW
Storage capacity (single-layer) 25GB 15GB
Storage capacity (dual-layer) 50GB 30GB
Laser wavelength 405nm 405nm
Numerical aperture (NA) 0.85 0.65
Protection layer 0.1mm 0.6mm
Data transfer rate (1x)
36.0Mbps
36.55Mbps
Video compression MPEG-2
MPEG-4 AVC
VC-1
MPEG-2
MPEG-4 AVC
VC-1
Blu-ray, also known as Blu-ray Disc (BD) is the name of a next-generation optical disc format jointly developed by the Blu-ray Disc Association (BDA), a group of the world's leading consumer electronics, personal computer and media manufacturers (including Apple, Dell, Hitachi, HP, JVC, LG, Mitsubishi, Panasonic, Pioneer, Philips, Samsung, Sharp, Sony, TDK and Thomson). The format was developed to enable recording, rewriting and playback of high-definition video (HD), as well as storing large amounts of data. A single-layer Blu-ray Disc can hold 25GB, which can be used to record over 2 hours of HDTV or more than 13 hours of standard-definition TV. There are also dual-layer versions of the discs that can hold 50GB.
Bottom line. Right now Blu-ray holds more has more support. My money is on Blu-ray!