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Information about Nero Digital

Nero Digital is a brand name applied to a suite of MPEG-4-compatible video and audio compression codecs developed by Nero AG of Germany and Ateme of France. The audio codecs are integrated into the Nero Digital Audio+ audio encoding tool for Microsoft Windows, and the audio & video codecs are integrated into Nero's Recode 2 DVD ripping software.

Nero certifies certain DVD player/recorder devices as Nero Digital compatible,[1] and licenses the codec technology to integrated circuit manufacturers.[2]

The video codecs were developed by Ateme,[3] and according to an interview with Nero AG developer Ivan Dimkovic, the audio codecs are based on Dimkovic's older, less sophisticated PsyTEL AAC Encoder.[4]

Functionality

Nero Digital can generate streams in the 3GP/MPEG-4 Part 14 (".mp4") container format and includes two video and two audio codecs:
  • ASP (one of about 20 profiles defined in MPEG-4 Part 2)
  • AVC (also known as MPEG-4 Part 10 or H.264)
  • AAC-LC (the most widely used AAC profile defined in MPEG-4 Part 3)
  • HE-AAC (defined in MPEG-4 Part 3, sometimes referenced as "aacPlus" or other, similar trademarks)
The codecs are compliant with the ISO/IEC standard, with the exception of subtitles and chapter information. The video streams generated by Nero Digital can be played back on some stand-alone hardware players and software media players such as the company's own Nero Showtime, though many reportedly have problems dealing with the Nero-encoded chapter points and subtitles.

Recode cannot rip encrypted DVD movie discs, but is able to import decrypted DVD images for encoding. Nero Digital also does not ship its codecs as stand-alone DirectShow or VfW modules, preventing them from being used for general-purpose video editing. The product is not bundled with a video editor.

Comparisons with other video codecs

The Nero Digital video codecs have been featured in video compression comparisons:

See also

References

1. ^ DVD player/recorder (list of certified devices). Retrieved on 2007-10-08.
2. ^ Become a partner of Nero today. Retrieved on 2007-10-08.
3. ^ Nero Digital format highlights. Retrieved on 2007-10-08.
4. ^ Interview of Ivan Dimkovic - The man behind Nero AAC encoder. AfterDawn.com. Retrieved on 2007-10-08.

External links

MPEG-4 is a standard used primarily to compress audio and visual (AV) digital data. Introduced in late 1998, it is the designation for a group of audio and video coding standards and related technology agreed upon by the ISO/IEC Moving Picture Experts Group (MPEG) under the formal
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codec, see Codec (disambiguation).


A codec is a device or program capable of performing encoding and decoding on a digital data stream or signal. The word codec may be a combination of any of the following: 'Compressor-Dec
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Nero AG is a German software company based in Karlsbad, Germany. The company is best known for its CD and DVD-authoring software package, Nero Burning ROM. In partnership with Ateme corporation, Nero AG develops and markets the Nero Digital
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Anthem
"Das Lied der Deutschen" (third stanza)
also called "Einigkeit und Recht und Freiheit"
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Ateme is a French software company specialising in multimedia applications, particularly video compression technology. The company was founded in 1991.

The company is a member of the AVC Alliance and the HD Forum.
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Motto
Liberté, Égalité, Fraternité
"Liberty, Equality, Fraternity"
Anthem
"La Marseillaise"


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Microsoft Windows

Screenshot of Windows Vista Ultimate, the latest version of Microsoft Windows.
Company/developer: Microsoft Corporation
OS family: MS-DOS/9x-based, Windows CE, Windows NT
Source model: Closed source

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DVD

Media type: Optical disc
Capacity: 4.7 GB (single layer), 8.5 GB (dual layer)
Usage: Data storage, audio, video, games

Optical disc authoring
  • Optical disc
  • Optical disc image
  • Recorder hardware
  • Authoring software

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For the process of sawing wood along the grain, see .


Ripping (also referred to as digital audio extraction) is the process of copying the audio or video data from one media form, such as DVD, HD DVD, Blu-ray or CD, to a hard disk.
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integrated circuit (also known as IC, microcircuit, microchip, silicon chip, or chip) is a miniaturized electronic circuit (consisting mainly of semiconductor devices, as well as passive components) that has been manufactured in the surface of a
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3GP is a multimedia container format defined by the Third Generation Partnership Project (3GPP) for use on 3G mobile phones.

3GP

File extension: .3gp .
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MP4 (MPEG-4 Part 14)

File extension: .mp4
MIME type: video/mp4
Type code: mpg4
Developed by: ISO
Type of format: Media container
Container for: Audio, video, text
Extended from: Quicktime .
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MPEG-4 Part 2 is a video compression technology developed by MPEG. It belongs to the MPEG-4 ISO/IEC standard (ISO/IEC 14496-2). It is a Discrete Cosine Transform compression standard, similar to previous standards such as MPEG-1 and MPEG-2.
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H.264 is a standard for video compression. It is also known as MPEG-4 Part 10, or AVC (for Advanced Video Coding). It was written by the ITU-T Video Coding Experts Group (VCEG) together with the ISO/IEC Moving Picture Experts Group (MPEG) as
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Advanced Audio Coding

File extension: .m4a, .m4b, .m4p, .m4v, .aac, .3gp, .mp4
Type of format: Lossy compression
Container for: Audio

Advanced Audio Coding (AAC) is a standardized, lossy compression and encoding scheme for
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MPEG-4 Part 3 (formally ISO/IEC 14496-3) is the third part of the ISO/IEC MPEG-4 international standard. It specifies audio coding methods.

Bifurcation in the AAC technical standard


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High Efficiency AAC (HE-AAC) is a lossy data compression scheme for digital audio. It is an extension of Low Complexity AAC (AAC LC) optimized for low-bitrate applications such as streaming audio.
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International Organization for Standardization (Organisation internationale de normalisation), widely known as ISO, is an international standard-setting body composed of representatives from various national standards organizations.
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The International Electrotechnical Commission[1] (IEC) is a not-for-profit, non-governmental international standards organization that prepares and publishes International Standards for all electrical, electronic and related technologies – collectively known
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Media Player was a media player originally included in Windows 3.0 with Multimedia Extensions and a slightly updated version was included with Windows 3.1x. Media Player received a facelift with Video for Windows, with an OLE2 version provided with the runtime software.
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This article or section may contain original research or unverified claims.
Please help Wikipedia by adding references. See the for details.
This article has been tagged since September 2007.

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DirectShow (sometimes abbreviated as DS or DShow), codename Quartz, is a multimedia framework and API produced by Microsoft for software developers to perform various operations with media files.
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Video for Windows (VfW, also referred to as Video Compression Manager (VCM)) was a multimedia framework developed by Microsoft that allowed Microsoft Windows to play digital video.
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x264 is a free software library for encoding H.264/MPEG-4 AVC video streams. Written from scratch by Loren Merritt, Laurent Aimar, Eric Petit, Min Chen, Justin Clay, Måns Rullgård, Radek Czyz, Alex Izvorski, Alex Wright, and Christian Heine, it is released under the terms of the
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The Sorenson codec (also known as Sorenson Video Codec, Sorenson Video Quantizer or SVQ) is a digital video codec devised by the company Sorenson Media. It is used in Apple's QuickTime and in Macromedia Flash.
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DivX are a brand name of products created by DivX, Inc. (formerly DivXNetworks, Inc.), including the DivX Codec which has become popular due to its ability to compress lengthy video segments into small sizes while maintaining relatively high visual quality.
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Audio Video Interleave (AVI) is not a codec, rather it is a container format, like Matroska, that many video codecs can use.

See also

  • Open source codecs and containers
  • Comparison of video codecs
  • Comparison of audio codecs

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