Comparison of high definition optical disc formats table: Difference between revisions

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A Table Comparing the High-definition Optical Media Formats
*DVD included for comparison*

Mandatory codecs must be supported by the player. Each disc must use one or more of the mandatory codecs.
v t 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	4.7 GB
Storage capacity (single side)		maximum	50 GB	51 GB	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)			Optional (Bonus View players only)^[c]	Mandatory	N/A
Secondary audio decoder			Optional (Bonus View players only)^[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]}
Content protection system			AACS-128bit / BD+ / ROM-Mark	AACS-128bit	CSS 40-bit
Region codes			3 Regions	Region free	6 Regions
Hardcoating of disc			Mandatory	Optional

^ b All HD DVD players are required to decode the two primary channels (left and right) of any Dolby TrueHD track,^[1]^[2] however every HD DVD player released thus far decodes 5.1 channels of TrueHD.
^ c On November 1 2007 Secondary video and audio decoder became mandatory for new Blu-ray Disc players when the Bonus View requirement came into effect. However players introduced to the market before this date can continue to be sold without Bonus View.
^ d There are some differences in the implementation of Dolby Digital Plus (DD+) on the two formats. On Blu-ray Disc, DD+ can only be used to extend a primary Dolby Digital (DD) 5.1 audiotrack. In this method 640 Kbit/s is allocated to the primary DD 5.1 audiotrack (which is independently playable on players that do not support DD+), and up to 1 Mbit/s is allocated for the DD+ extension. The DD+ extension is used to replace the rear channels of the DD track with higher fidelity versions, along with adding additional channels for 6.1/7.1 audiotracks. On HD DVD, DD+ is used to encode all channels (up to 7.1), and no legacy DD track is required since all HD DVD players are required to decode DD+.
^ e On DVD 24 frame per second content is stored as 60 interlaced fields per second using a process called 3:2 pulldown, which if done properly can be reversed to retrieve the original 24 frame per second content.

[1] HD DVD Promotion Group

[2] DVD Forum.org HD DVD Technology

[1]

[2]

@@ Line 65: / Line 65: @@
 | N/A
 |-
-|rowspan="3" valign="center" style="background:#EAEAEA;"| '''Maximum<br>bitrate'''
+|rowspan="3" valign="center" style="background:#EAEAEA;"| '''Maximum<br>[[bitrate]]'''
 |colspan="2" style="background:#EAEAEA;"| '''Raw data transfer'''
 | 53.95 Mbit/s
@@ Line 105: / Line 105: @@
 | 720×480 ([[NTSC]]), 720x576 ([[PAL]])
 |-
-|colspan="3" style="background:#EAEAEA;"| '''Frame rates'''
+|colspan="3" style="background:#EAEAEA;"| '''[[Frame rate]]s'''
 | [[24p|24/25p]], [[Interlace|50/60i]]
 | [[24p|24/25/30p]], [[Interlace|50/60i]]
 | [[Interlace|50/60i]]{{ref|HDMC_table_note_e|[e]}}{{dubious|Frame_Rate_RfC}}
 |-
-|colspan="3" style="background:#EAEAEA;"| '''Content protection system'''
+|colspan="3" style="background:#EAEAEA;"| '''[[Digital Rights Management|Content protection system]]'''
 | [[Advanced Access Content System|AACS]]-128bit / [[BD+]] / [[ROM-Mark]]
 | [[Advanced Access Content System|AACS]]-128bit
@@ Line 125: / Line 125: @@
 |-
 |}
-{{note|HDMC_table_note_a}}'''a''' Playback times are quoted for single sided discs of each size starting with the largest at the stated average bitrate, higher or lower average bitrates would change the available playback time. The numbers represent video only and the choice of audio codec and extra content also affects playback time.<br>
 {{note|HDMC_table_note_b}}'''b''' All HD DVD players are required to decode the two primary channels (left and right) of any Dolby TrueHD track,<ref>[http://www.hddvdprg.com/jpn/about/hddvd/page04.html HD DVD Promotion Group]</ref><ref>[http://www.dvdforum.org/images/DVD-Forum-070605_ENG_rev110.pdf DVD Forum.org HD DVD Technology]</ref> however every HD DVD player released thus far decodes 5.1 channels of TrueHD.<br>
 {{note|HDMC_table_note_c}}'''c''' On [[November 1]] [[2007]] Secondary video and audio decoder became mandatory for new Blu-ray Disc players when the [[Blu-ray Disc#Player profiles|Bonus View]] requirement came into effect. However players introduced to the market before this date can continue to be sold without Bonus View.<br>