Basic Info. about Blu-ray

Editor’s note: Here we give the basic information about Blu-ray, all the contents from internet, this article is just gather the information for you.

In this article, you will learn: Ultra HD Blu-ray (UHD), Blu-ray Disc (abbreviation BD), AVCHD (Advanced Video Coding High Definition), Blu-ray Disc Sizes, Video Technical Info for Blu-ray Disc, Blu-ray Disc folder structure

Ultra HD Blu-ray (UHD) is the future 4K Blu-ray Disc format. It will support 4K UHD (3840×2160 resolution) video at frame rates up to 60 frames per second. The standard will encode videos under the High Efficiency Video Coding standard(HEVC/H265). 4K Blu-ray Discs will support both a higher dynamic range by increasing the color depth to 10-bit per color and a greater color gamut by using the Rec. 2020 color space using HEVC. The 4K-Blu-ray specification allows for three disc sizes, each with their own data rate: 50 GB with 82 Mbit/s, 66 GB with 108 Mbit/s, and 100 GB with 128 Mbit/s.Wikipedia

Blu-ray Disc (abbreviation BD) is a next-generation optical disc format meant for storage of high-definition video and high-density data. The Blu-ray standard was jointly developed by a group of consumer electronics and PC companies called the Blu-ray Disc Association (BDA). As compared to the HD DVD format, its main competitor, Blu-ray has more information capacity per layer, 25 instead of 15 gigabytes, but may initially be more expensive to produce. Wikipedia

AVCHD (Advanced Video Coding High Definition) is a file-based format for the digital recording and playback of high-definition video. Developed jointly by Sony and Panasonic, the format was introduced in 2006 primarily for use in high definition consumer camcorders. Favorable comparisons of AVCHD against HDV and XDCAM EX[3][4] solidified perception of AVCHD as a format acceptable for professional usage. Panasonic released the first professional AVCHD camcorder in autumn of 2008, followed by Sony in the first quarter of 2010. Wikipedia

Blu-ray Disc Sizes

BD-R Single layer 25GB (23.3GiB)
BD-R Dual layer 50GB (46.6GiB)
BD-RE Single layer REwriteable 25 GB (23.3GiB)
BD-RE Dual layer REwriteable 50GB (46.6GiB)
BD-XL Triple layer 100GB (93.1GiB)
BD-XL Quadruple layer 128GB (119.2GiB)

Video Technical Info for Blu-ray Disc

 

Blu-ray Disc 

Video codecs Ultra HD Blu-ray
HEVC/H.265
Blu-ray
MPEG2 – MP@HL and MP@ML
AVC/H.265 – MPEG-4 AVC: HP@4.1/4.0 and MP@4.1/4.0/3.2/3.1/3.0
VC-1 – AP@L3 and AP@L2
Video frame size High Definition Video (frame size x frames/fields per second x interlaced or progressive) (frame aspect ratio)
Ultra HD Blu-ray (UHD)
3840×2160 23.976 frames progressive (16:9)
3840×2160 24 frames progressive (16:9)
3840×2160 25 frames progressive (16:9)
3840×2160 50 frames progressive (16:9)
3840×2160 59.94 frames progressive (16:9)
3840×2160 60 frames progressive (16:9)
1920×1080 23.976 frames progressive (16:9)
1920×1080 24 frames progressive /16:9)
1920×1080 25 frames progressive (16:9)
1920×1080 50 frames progressive (16:9)
1920×1080 59.94 frames progressive (16:9)
1920×1080 60 frames progressive (16:9)
Blu-ray 3D
1920×1080 (x2) (base view + dependent view) 23.976 frames progressive (x2) (16:9)
1280×720 (x2) (base view + dependent view) 59.94 frames progressive (x2) (16:9)
1280×720 (x2) (base view + dependent view) 50 frames progressive (x2) (16:9(
Blu-ray
1920×1080 29.97 frames interlaced / 59.94 fields (16:9)
1920×1080 25 frames interlaced / 50 fields (16:9)
1920×1080 24 frames progressive (16:9)
1920×1080 23.976 frames progressive (16:9)
1440×1080 29.976 frames interlaced / 59.94 fields (16:9)
1440×1080 25 frames interlaced / 50 fields (16:9)
1440×1080 24 frames progressive (16:9)
1440×1080 23.976 frames progressive (16:9)
1280×720 59.94 frames progressive (16:9)
1280×720 50 frames progressive (16:9)
1280×720 24 frames progressive (16:9)
1280×720 23.976 frames progressive (16:9)
720×480 29.97 frames interlaced / 59.94 fields (4:3/16:9)
720×576 25 frames interlaced / 50 fields (4:3/16:9)
Max video bitrate 40 Mbit/s
Audio codecs Dolby Digital up to 5.1 channels (Max 640 Kbit/s)
Dolby Digital Plus up to 7.1 channels (Max 4.736Mbit/s)
Dolby Lossless up to 9 channels (Max 18.64Mbit/s)
DTS up to 5.1 channels (Max 1.524Mbit/s)
DTS HD up to 9 channels (Max 24.5Mbit/s)
Linear PCM up to 9 channels (Max 27.648Mbit/s)
Subtitles Image bitmap subtitles
Text subtitles – select different font styles, sizes and colors for the subtitles, or location on screen, depending on the disc’s offerings. Subtitles can be animated, scrolled or faded in and out.
Other Features HDMV mode
Offers all features of DVD-Video and more. The authoring process is in line with DVD-Video creation.
BD-J mode
Offers unparalleled flexibility and features, because it is based on the Java runtime environment. It allows for extensive interactive applications, and offers Internet connectivity.
Maximum total bitrate 48 Mbit/s
Maximum data transfer rate 54 Mbit/s
More information Detailed Blu-ray Video specifications here and Encoding Video for Blu-Ray using H264/AVC

Blu-ray Disc folder structure
BDMV

PLAYLIST
xxxxx.mpls – files store information corresponding to Movie PlayLists. One file is created for each Movie PlayList. The filenames of these files are in the form “xxxxx.mpls”, where “xxxxx” is a 5-digit number corresponding to the Movie PlayList.

CLIPINF
zzzzz.clpi – files store Clip information associated with a Clip AV stream file. The filenames of these files are in the form “zzzzz.clpi”, where “zzzzz” is a 5-digit number corresponding to the Clip.

STREAM
zzzzz.m2ts – files contains a BDAV MPEG-2 transport stream. The names of these files are in the form “zzzzz.m2ts”, where “zzzzz” is a 5-digit number corresponding to the Clip. The same 5-digit number “zzzzz” is used for an AV stream file and its associated Clip information file.

AUXDATA
sound.bdmv – file stores data relating to one or more sounds associated with HDMV Interactive Graphic streams applications. This file may or may not exist under the AUXDATA directory. If it exists, there shall be only one sound.bdmv file and its filename is fixed to “sound.bdmv “.
aaaaa.otf – file stores the font information associated with Text subtitle applications. The names of these files are in the form “aaaaa.otf”, where “aaaaa” is a 5-digit number corresponding to the Font.

BACKUP
The BACKUP directory contains copies of the “index.bdmv” file, the “MovieObject.bdmv” file, all the files in the PLAYLIST directory and all files in the CLIPINF directory.

index.bdmv – file stores information describing the contents of the BDMV directory. There is only one index.bdmv file under the BDMV directory and its filename is fixed to “index.bdmv”.

movieobject.bdmv – file stores information for one or more Movie Objects. There is only one MovieObject.bdmv under the BDMV directory and its filename is fixed to “ MovieObject.bdmv “.

Example from Talladega Nights Blu-ray

\BDMV\index.bdmv
\BDMV\MovieObject.bdmv
\BDMV\PLAYLIST\00000.mpls
\BDMV\PLAYLIST\00054.mpls
\BDMV\PLAYLIST\00058.mpls
\BDMV\PLAYLIST\00059.mpls
\BDMV\PLAYLIST\00060.mpls
\BDMV\PLAYLIST\00061.mpls
\BDMV\PLAYLIST\00062.mpls
\BDMV\PLAYLIST\00063.mpls
\BDMV\PLAYLIST\00064.mpls
\BDMV\PLAYLIST\00065.mpls
\BDMV\CLIPINF\00000.clpi
\BDMV\CLIPINF\00001.clpi
\BDMV\CLIPINF\00055.clpi
\BDMV\CLIPINF\00059.clpi
\BDMV\CLIPINF\00060.clpi
\BDMV\CLIPINF\00061.clpi
\BDMV\CLIPINF\00062.clpi
\BDMV\CLIPINF\00063.clpi
\BDMV\CLIPINF\00064.clpi
\BDMV\CLIPINF\00065.clpi
\BDMV\CLIPINF\00066.clpi
\BDMV\CLIPINF\00067.clpi
\BDMV\STREAM\00000.m2ts
\BDMV\STREAM\00001.m2ts
\BDMV\STREAM\00055.m2ts
\BDMV\STREAM\00059.m2ts
\BDMV\STREAM\00060.m2ts
\BDMV\STREAM\00061.m2ts
\BDMV\STREAM\00062.m2ts
\BDMV\STREAM\00063.m2ts
\BDMV\STREAM\00064.m2ts
\BDMV\STREAM\00065.m2ts
\BDMV\STREAM\00066.m2ts
\BDMV\STREAM\00067.m2ts
\BDMV\AUXDATA\sound.bdmv
\BDMV\BACKUP\index.bdmv
\BDMV\BACKUP\MovieObject.bdmv
\BDMV\BACKUP\PLAYLIST\00000.mpls
\BDMV\BACKUP\PLAYLIST\00054.mpls
\BDMV\BACKUP\PLAYLIST\00058.mpls
\BDMV\BACKUP\PLAYLIST\00059.mpls
\BDMV\BACKUP\PLAYLIST\00060.mpls
\BDMV\BACKUP\PLAYLIST\00061.mpls
\BDMV\BACKUP\PLAYLIST\00062.mpls
\BDMV\BACKUP\PLAYLIST\00063.mpls
\BDMV\BACKUP\PLAYLIST\00064.mpls
\BDMV\BACKUP\PLAYLIST\00065.mpls
\BDMV\BACKUP\CLIPINF\00000.clpi
\BDMV\BACKUP\CLIPINF\00001.clpi
\BDMV\BACKUP\CLIPINF\00055.clpi
\BDMV\BACKUP\CLIPINF\00059.clpi
\BDMV\BACKUP\CLIPINF\00060.clpi
\BDMV\BACKUP\CLIPINF\00061.clpi
\BDMV\BACKUP\CLIPINF\00062.clpi
\BDMV\BACKUP\CLIPINF\00063.clpi
\BDMV\BACKUP\CLIPINF\00064.clpi
\BDMV\BACKUP\CLIPINF\00065.clpi
\BDMV\BACKUP\CLIPINF\00066.clpi
\BDMV\BACKUP\CLIPINF\00067.clpi
\AACS\MKB_RO.inf
\AACS\MKB_RW.inf
\AACS\ContentRevocation.lst
\AACS\Unit_Key_RO.inf
\AACS\Content000.cer
\AACS\CPSUnit00001.cci
\AACS\mcmf.xml
\AACS\DUPLICATE\MKB_RO.inf
\AACS\DUPLICATE\MKB_RW.inf
\AACS\DUPLICATE\ContentRevocation.lst
\AACS\DUPLICATE\Unit_Key_RO.inf
\AACS\DUPLICATE\Content000.cer
\AACS\DUPLICATE\CPSUnit00001.cci
\AACS\DUPLICATE\mcmf.xml
\AACS\DUPLICATE\ContentHash000.tbl
\AACS\ContentHash000.tbl

resource: http://www.videohelp.com/hd

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