Low Voltage Guys Chicago | A Table Comparing the High-definition Optical Media Formats | General

A Table Comparing the High-definition Optical Media Formats
*DVD included for comparison*
v • d • e			Blu-ray Disc	HD DVD	DVD
Laser wavelength			405 nm (blue-violet laser)		650 nm (red laser)
Numerical aperture			0.85	0.65	0.6
Storage capacity (single side)		per layer	25 GB	15/17 GB^[a]	4.7 GB
Storage capacity (single side)		maximum	50 GB	30/51 GB^[a]	8.5 GB
Mandatory Video codecs			H.264/MPEG-4 AVC / VC-1 / MPEG-2		MPEG-1 / MPEG-2
Audio codecs	lossy	Dolby Digital	Mandatory @ 640 Kbit/s	Mandatory @ 504 Kbit/s	Mandatory @ 448 Kbit/s
		DTS	Mandatory @ 1.5 Mbit/s		Optional @ 1.5 Mbit/s
		Dolby Digital Plus^[d]	Optional @ 1.7 Mbit/s	Mandatory @ 3.0 Mbit/s	N/A
		DTS-HD High Resolution	Optional @ 6.0 Mbit/s	Optional @ 3.0 Mbit/s	N/A
	lossless	Linear PCM	Mandatory
		Dolby TrueHD	Optional	Mandatory^[b]	N/A
		DTS-HD Master Audio	Optional		N/A
Maximum bitrate	Raw data transfer		53.95 Mbit/s	36.55 Mbit/s	11.08 Mbit/s
	Audio+Video+Subtitles		48.0 Mbit/s	30.24 Mbit/s	10.08 Mbit/s
	Video		40.0 Mbit/s	29.4 Mbit/s	9.8 Mbit/s
Secondary video decoder (PiP)			Mandatory for Bonus View players^[c]	Mandatory	N/A
Secondary audio decoder			Mandatory for Bonus View players^[c]	Mandatory	N/A
Interactivity			BDMV and Blu-ray Disc Java	Standard Content and Advanced Content	Rudimentary
Internet support			Optional (BD-Live players only)	Mandatory	N/A
Video resolution (maximum)			1920×1080		720×480 (NTSC), 720x576 (PAL)
Frame rates			24/25p, 50/60i	24/25/30p, 50/60i	50/60i^[e]^{[dubious – discuss]}
Digital Rights Management			AACS-128bit / BD+ / ROM-Mark	AACS-128bit	CSS 40-bit
Region codes			3 Regions	Region free	6 Regions
Hardcoating of disc			Mandatory	Optional

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A Table Comparing the High-definition Optical Media Formats