.m2ts: Difference between revisions
m Reverted edits by 148.244.98.115 (talk) to last version by Cydebot |
|||
Line 47: | Line 47: | ||
Some M2TS files can be played with [[ALLPlayer]], [[MPlayer]], [[Windows Media Player]], [[VLC media player | VLC]] and other [[media player (application software)|media player]]s, depending on used compression formats in a M2TS file. Some players will need an appropriate [[codec]], component or plugin installed.{{Fact|date=July 2009}} The file type .m2ts is not always automatically associated with the player, so it may be necessary to open it from the player. |
Some M2TS files can be played with [[ALLPlayer]], [[MPlayer]], [[Windows Media Player]], [[VLC media player | VLC]] and other [[media player (application software)|media player]]s, depending on used compression formats in a M2TS file. Some players will need an appropriate [[codec]], component or plugin installed.{{Fact|date=July 2009}} The file type .m2ts is not always automatically associated with the player, so it may be necessary to open it from the player. |
||
Current versions of [[Nero Vision]], [[AVS Video Converter]], [[FormatFactory]], [[Total video converter]], [[MediaCoder]], [[HandBrake]] |
Current versions of [[Nero Vision]], [[AVS Video Converter]], [[FormatFactory]], [[Total video converter]], [[MediaCoder]], [[HandBrake]], Picture Motion Browser and iFunia AVCHD Converter are capable of converting M2TS files into [[MPEG-4]] files, which can also be viewed using the aforementioned media players. |
||
Sony products Media Manager PRO for PSP, Media Manager PRO for Walkman, and Mobile Media Manager PRO are all capable of converting M2TS format to [[MP4]] files. |
Sony products Media Manager PRO for PSP, Media Manager PRO for Walkman, and Mobile Media Manager PRO are all capable of converting M2TS format to [[MP4]] files. |
Revision as of 03:40, 4 August 2010
![]() |
Filename extension |
.m2ts, .MTS |
---|---|
Internet media type |
video/MP2T[1] |
Type of format | Media container |
Container for | Audio, video, data |
Contained by | Blu-ray Disc, AVCHD |
Extended from | MPEG-2 transport stream (ISO/IEC 13818-1) |
The .m2ts is a filename extension used for the BDAV MPEG-2 Transport Stream container file format. It is used for multiplexing audio, video and other streams. It is based on the MPEG-2 transport stream container.[2][3][4][5] This container format is commonly used for high definition video on Blu-ray Disc and AVCHD.[6]
Overview
The BDAV container format is a modification of MPEG-2 transport stream (ITU-T H.222.0 | ISO/IEC 13818-1) specification for random-access media, such as Blu-ray Disc, DVD, hard drives or solid-state memory cards. It is also informally called M2TS.
The BDAV container format (.m2ts) is a standard used on Blu-ray Discs.[7][8][9] Blu-ray Disc titles authored with menu support are in the BDMV (Blu-ray Disc Movie) format and contain audio, video, and other streams in BDAV container (.m2ts), which is based on the MPEG transport stream format.[4][5] The BDAV container is also used in the BDAV (Blu-ray Disc Audio/Visual) disc format, the consumer-oriented alternative to the BDMV discs. BDAV disc format is used on BD-RE and BD-R discs for audio/video recording.[5][10]
The BDAV container with filename extension .MTS or .m2ts is also used in AVCHD format, which is a high definition digital video camera recorder format.[11] AVCHD is a simpler form of the Blu-ray Disc standard with just one video encoding algorithm and two audio encodings.[11][12] Compared to Blu-ray Disc format, AVCHD can use various storage media, such as DVD media, memory cards or hard disk drives. The BDAV container contains videos recorded using AVCHD camcorders, such as Sony's HDR-SR(xx)series models. Panasonic, Canon and other brands of AVCHD camcorders also store recorded video in BDAV container format. There are some problems with AVCHD compatibility between brands.
Formats
The BDAV container format used on Blu-ray Discs can contain one of the three mandatory supported video compression formats MPEG-2 Part 2, H.264/MPEG-4 AVC or SMPTE VC-1[13] and audio compression formats such as Dolby Digital, DTS or uncompressed Linear PCM. Optionally supported audio formats are Dolby Digital Plus, DTS-HD High Resolution Audio and Dolby TrueHD.[9][14]
The BDAV container format used on AVCHD equipment is more restricted and can contain only H.264/MPEG-4 AVC video compression and Dolby Digital (AC-3) audio compression or uncompressed LPCM audio.[12]
File and folder structure
The names of M2TS files are in the form “zzzzz.m2ts”, where “zzzzz” is a 5-digit number corresponding to the audiovisual clip. This number is also used in the filename of an associated clip information file "zzzzz.clpi".[9] (This number can be a date and time stamp of when the video clip was recorded.) Each stream has its own file.[15]
Files in AVCHD format use legacy "8.3" file naming convention, while Blu-ray Discs use long filenames. That's why the filename extension of video files is ".MTS" instead of Blu-ray Disc's ".m2ts". Also other files use different extensions: .CPI - .clpi, .MPL - .mpls, .BDM - .bdmv.[11][16]
The M2TS files on a Blu-ray Disc are placed in the subdirectory "STREAM" of "BDMV" (or "BDAV") directory, which is at the root level. (e.g. \BDMV\STREAM\00001.m2ts or \BDAV\STREAM\00001.m2ts)[2][8] On some AVCHD equipment, the "BDMV" directory is located in the "AVCHD" directory, which is placed at the root level (e.g. \AVCHD\BDMV\STREAM\00001.MTS).[11]
Software support
Almost all commercially produced Blu-ray Disc titles use copy protection method called Advanced Access Content System, which encrypts content of the disc (including M2TS files). Software that supports M2TS files usually works only with decrypted or unencrypted files. Blu-ray Disc software players can usually play back encrypted content from original disc. Video content created using an AVCHD equipment is commonly unencrypted.
Currently, M2TS files can be played using the Picture Motion Browser, which is an application video player provided with Sony AVCHD camcorders.
Some M2TS files can be played with ALLPlayer, MPlayer, Windows Media Player, VLC and other media players, depending on used compression formats in a M2TS file. Some players will need an appropriate codec, component or plugin installed.[citation needed] The file type .m2ts is not always automatically associated with the player, so it may be necessary to open it from the player.
Current versions of Nero Vision, AVS Video Converter, FormatFactory, Total video converter, MediaCoder, HandBrake, Picture Motion Browser and iFunia AVCHD Converter are capable of converting M2TS files into MPEG-4 files, which can also be viewed using the aforementioned media players.
Sony products Media Manager PRO for PSP, Media Manager PRO for Walkman, and Mobile Media Manager PRO are all capable of converting M2TS format to MP4 files.
M2TS format from Sony is not necessarily the same as that of Panasonic or Canon camcorders. However, programs like Sony Vegas Pro and AVS Video Editor can open and edit both Sony M2TS files as well as Panasonic M2TS files. (Sony Vegas Pro v.9 is also capable of reading and editing M2TS files produced by Canon Vixia Camcorders.) The only other piece of software known currently to handle both types is Pinnacle Studio 12 Ultimate and Cyberlink Power Director v8.
M2TS files can also be played on Sony PlayStation 3s, Sony Bravia TVs, Western Digital WDTVs, Xtreamer media player, and Panasonic Viera TVs supporting playback of AVCHD.
See also
- MPEG transport stream
- AVCHD
- MOD and TOD (video format)
- VOB (used on DVD)
- Enhanced VOB (used on HD DVD)
- Comparison of container formats
Notes
- ^ RFC 3555: "MIME subtype name: MP2T - MPEG-2 Transport Streams". Accessed 2009-09-01. Archived 2009-09-04.
- ^ a b Blu-ray Disc Association (March 2005) BD ROM - Audio Visual Application Format Specifications (PDF) Page 15, Retrieved on 2009-07-26. Archived 2009-07-29.
- ^ Blu-ray Disc Association (2010), Application Definition - Blu-ray Disc Format - BD-J Baseline Application and Logical Model Definition for BD-ROM - March 2005 (PDF), retrieved 2010-06-10
- ^ a b AfterDawn.com Glossary - BD-MV (Blu-ray Disc Movie) and BDAV container, Retrieved on 2009-07-26. Archived 2009-07-29.
- ^ a b c AfterDawn.com Glossary - BDAV container, Retrieved on 2009-07-26
- ^ "VideoHelp Glossary - M2T, m2ts, mts". Retrieved 2010-06-10.
- ^ Blu-ray Disc Association (August 2004) Blu-ray Disc Format, White paper (PDF) Pages 18 and 22, Retrieved on 2009-07-28
- ^ a b Blu-ray Disc Association (March 2008) BD RE - Audiovisual Application Format Specification for BD-RE 2.1 (PDF), Retrieved on 2009-07-28. Archived 2009-07-29.
- ^ a b c Videohelp.com What is Blu-ray Disc and HD DVD?, Retrieved on 2009-07-26. Archived 2009-07-29.
- ^ Sony. "Upscale Blu-ray Disc (BDAV) content". Retrieved 2010-06-10.
- ^ a b c d Backing up AVCHD video onto DVDs and playing them on a Blu-ray Disc player, Retrieved on 2009-07-27. Archived 2009-07-29.
- ^ a b AVCHD Information Website AVCHD format specification overview, Retrieved on 2009-07-27
- ^ "Blu-ray Disc To Support WHS, MPEG-4, VC-1 - PC World". Archived from the original on 2009-07-20. Retrieved 2009-07-01.
{{cite web}}
: Unknown parameter|deadurl=
ignored (|url-status=
suggested) (help) - ^ "1st HD DVD Players To Decode All Mandatory, Optional Audio Codecs". TWICE. Retrieved 2009-01-29.
- ^ M2TS filename extension, Retrieved on 2009-07-27. Archived 2009-07-29.
- ^ Doom9.org forum (2008) Changing Blu-ray Disc structure to AVCHD, Retrieved on 2009-07-29