FreeFormats
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| More information about open and / or free formats is available at these sites: * http://en.wikipedia.org/wiki/Open_format * http://www.openformats.org |
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| There are a number of free formats which are preferred over patent and copyright encumbered formats. Keep in mind that some formats (like PDF or Flash) often have public or semi-public specifications but have some restrictions imposed by their patent-holders. Some replacement formats are listed here: | This document provides a short explanation of what a Free format is, along with some specific information on the range of Free formats which are available for you to use. |
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| || Restricted Format || Preferred format || | ''Warning - patent and copyright laws operate differently depending on which country you are in. Please obtain legal advice if you are unsure whether a particular patent or restriction applies to a format you wish to use in your country.'' = What is a Free format? = Some file formats are ''proprietary'', which means that they are owned by a company or other organisation. Sometimes, the owners of such formats charge licensing fees or impose legal restrictions on the use of their formats. This means that people may be unable to use or distribute these formats without first paying a fee or applying for a license. A Free or open format is one which can be used by ''anyone'', free of legal restrictions on how they use the format. Free formats are very popular - the World Wide Web is based on the open HTML standard. Ubuntu supports many free formats and the open-source community as a whole encorages their wider use. There are a number of Free formats which are preferred over patent and copyright encumbered formats. Keep in mind that some formats (like PDF or Flash) often have public or semi-public specifications but have some restrictions imposed by their patent-holders. Some replacement formats are listed here: || '''Restricted Format''' || '''Preferred format''' || |
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| || doc, xls, ppt || [http://www.odfalliance.org/ OpenDocument format] || | |
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Electronic equipment, such as portable audio players, often support only a handful of different formats. Often, these will be proprietary formats which the manufacturer of the device has obtained a license to use or similar. As such, it can sometimes be difficult to find a product which is able to use a chosen Free format. This section provides advice on purchasing equipment which can make use of Free formats. |
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| If you are interested in purchasing new players (eg. portable audio players), please refer to [http://wiki.xiph.org/index.php/VorbisHardware VorbisHardware] to see what equipment will play also these formats. | If you are interested in purchasing new players (e.g. portable audio players), please refer to [http://wiki.xiph.org/index.php/VorbisHardware VorbisHardware] to see what equipment is able play these formats. |
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This section provides information on format-specific issues and lists alternatives to popular non-free formats. |
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Many popular audio formats are non-free and are strongly legally protected in some countries. There are superior Free formats available, however. |
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| MP3 is patent-encumbered, for both encoding and decoding. These patents are being actively enforced, so usage and development of MP3-programs is not encouraged. As mentioned before, you should considering using Ogg Vorbis, which is a free and higher quality alternative to MP3 (you just need to buy audio equipment more carefully). | MP3 is patent-encumbered, for both encoding and decoding. These patents are being actively enforced, so usage and development of MP3-programs is not encouraged. Consider using Ogg Vorbis, which is a free and higher quality alternative to MP3 (you just need to buy audio equipment more carefully). |
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| * FLAC (Free Lossless Audio Codec) for eg. music archival * Speex (high quality speech compression) |
* [http://flac.sourceforge.net/ FLAC] (Free Lossless Audio Codec) for eg. music archival * [http://www.speex.org/ Speex] (high quality speech compression) |
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Some video formats are also subject to strong legal restrictions in certain countries, or use copy-protection methods which are non-free. |
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| Non-encrypted DVDs should play, however be aware that mpeg2-video is somewhat patent encumbered and the support for it is not shipped on the CDs | Non-encrypted DVDs should play, however be aware that mpeg2-video is somewhat patent encumbered and the support for it is not installed by default in Ubuntu. |
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| Full DVD-Video support requires support of the Content Scrambling System (CSS). Though the encryption is weak, using libdvdcss to avoid this is classed as a 'circumvention device' and is such illegal in the United States and some other jurisdictions. | Full DVD-Video support requires support for the Content Scrambling System (CSS). Though the encryption is weak, using libdvdcss to avoid this is classed as a 'circumvention device' and as such is illegal in the United States and some other jurisdictions. |
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| However, as you can read at [http://www.csd.net/~cgadd/dvd.htm the DeCSS information page], in most European countries, DVD backup is legal. In fact, you can backup anything that you own in, eg. Norway, Sweden, etc. If you do not require compatibility with a DVD player, consider encoding your videos in [http://www.theora.org/ Ogg Theora]. | However, as you can read at [http://www.csd.net/~cgadd/dvd.htm the DeCSS information page], in most European countries DVD backup is legal. In fact, in countries such as Norway and Sweden you can legally backup anything that you own. If you do not require compatibility with a DVD player, consider encoding your videos in the [http://www.theora.org/ Ogg Theora] format. |
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| * Dirac (another free video format in development) | * [http://dirac.sourceforge.net/ Dirac] (another free video format in development) |
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| == Desktop publishing, graphics == * ODT (Open Document Text) - This format is used starting with [http://www.OpenOffice.org OpenOffice.org 2]. * [http://www.svg-whiz.com/wiki/index.php?title=Main_Page SVG] (Scalable Vector Graphics) - There's a list of [http://www.svg-whiz.com/wiki/index.php?title=Design_Tools design tools] that support this fomat |
== Desktop publishing and graphics == * '''OpenDocument''' - This group of office document formats is seen as an excellent alternative to proprietary formats such as those used by Microsoft Office and is gaining widespread support in open-source office suites. OpenDocument recently became an International standard - ISO/IEC 26300. More information can be found on the [http://www.odfalliance.org/ ODF Alliance website]. * '''Scalable Vector Graphics (SVG)''' - SVG is a vector graphics format developed by the World Wide Web Consortium (W3C), which is responsible for major Web standards such as HTML, CSS and PNG. SVG is recommended as an alternative to proprietary vector graphics formats such as Adobe Illustrator (AI). A list of [http://www.svg-whiz.com/wiki/index.php?title=Design_Tools design tools] which support this format is available. For more information, see the [http://www.w3.org/Graphics/SVG/ W3C's SVG pages]. |
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Other multimedia format types are subject to legal restrictions. |
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| There are two projects working to create a free implementation of flash, so that people could view Flash animations without resorting to non-free software: | There are several projects working to create a free implementation of Macromedia Flash, so that people can view Flash animations without resorting to non-free software: |
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| * [http://www.gnu.org/software/gnash/ Gnash] Currently the most complete implementation. | |
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Other popular formats are subject to restrictions in some jurisdictions. |
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| Free implementation of Java is ongoing in many places, including [http://gcc.gnu.org/java/ GCJ], GNU Classpath, [http://www.nongnu.org/gcjwebplugin/ gcjwebplugin] and the new Apache Harmony. Together they aim to provide full Java platform as free software. Current implementations are already being used to run OpenOffice.org 2's Java-parts, Eclipse and many other software. Eventually, the need for non-free Java should hopefully disappear. | Free implementation of Java is ongoing in many places, including [http://gcc.gnu.org/java/ GCJ], GNU Classpath, [http://www.nongnu.org/gcjwebplugin/ gcjwebplugin] and the new Apache Harmony. Together they aim to provide a full Java platform as Free software. Current implementations are already being used to run OpenOffice.org 2's Java components, the Eclipse IDE and many other applications. Eventually, the need for non-free Java should hopefully disappear. = Additional Resources = * '''Wikipedia article on open formats''' - http://en.wikipedia.org/wiki/Open_format * '''OpenFormats.org''' - http://www.openformats.org ---- CategoryDocumentation CategoryEthics |
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This document provides a short explanation of what a Free format is, along with some specific information on the range of Free formats which are available for you to use.
Warning - patent and copyright laws operate differently depending on which country you are in. Please obtain legal advice if you are unsure whether a particular patent or restriction applies to a format you wish to use in your country.
What is a Free format?
Some file formats are proprietary, which means that they are owned by a company or other organisation. Sometimes, the owners of such formats charge licensing fees or impose legal restrictions on the use of their formats. This means that people may be unable to use or distribute these formats without first paying a fee or applying for a license.
A Free or open format is one which can be used by anyone, free of legal restrictions on how they use the format. Free formats are very popular - the World Wide Web is based on the open HTML standard. Ubuntu supports many free formats and the open-source community as a whole encorages their wider use.
There are a number of Free formats which are preferred over patent and copyright encumbered formats. Keep in mind that some formats (like PDF or Flash) often have public or semi-public specifications but have some restrictions imposed by their patent-holders. Some replacement formats are listed here:
Restricted Format |
Preferred format |
mp3, aac, wma |
[http://www.vorbis.com/ Ogg Vorbis] |
wmv, avi |
[http://www.theora.org/ Ogg Theora] |
doc, xls, ppt |
[http://www.odfalliance.org/ OpenDocument format] |
Purchasing equipment that supports free formats
Electronic equipment, such as portable audio players, often support only a handful of different formats. Often, these will be proprietary formats which the manufacturer of the device has obtained a license to use or similar. As such, it can sometimes be difficult to find a product which is able to use a chosen Free format. This section provides advice on purchasing equipment which can make use of Free formats.
Audio
If you are interested in purchasing new players (e.g. portable audio players), please refer to [http://wiki.xiph.org/index.php/VorbisHardware VorbisHardware] to see what equipment is able play these formats.
Specific format / application information
This section provides information on format-specific issues and lists alternatives to popular non-free formats.
Audio
Many popular audio formats are non-free and are strongly legally protected in some countries. There are superior Free formats available, however.
MP3
MP3 is patent-encumbered, for both encoding and decoding. These patents are being actively enforced, so usage and development of MP3-programs is not encouraged. Consider using Ogg Vorbis, which is a free and higher quality alternative to MP3 (you just need to buy audio equipment more carefully).
Other free audio formats:
[http://flac.sourceforge.net/ FLAC] (Free Lossless Audio Codec) for eg. music archival
[http://www.speex.org/ Speex] (high quality speech compression)
Video
Some video formats are also subject to strong legal restrictions in certain countries, or use copy-protection methods which are non-free.
DVD
Non-encrypted DVDs should play, however be aware that mpeg2-video is somewhat patent encumbered and the support for it is not installed by default in Ubuntu.
Full DVD-Video support requires support for the Content Scrambling System (CSS). Though the encryption is weak, using libdvdcss to avoid this is classed as a 'circumvention device' and as such is illegal in the United States and some other jurisdictions.
However, as you can read at [http://www.csd.net/~cgadd/dvd.htm the DeCSS information page], in most European countries DVD backup is legal. In fact, in countries such as Norway and Sweden you can legally backup anything that you own. If you do not require compatibility with a DVD player, consider encoding your videos in the [http://www.theora.org/ Ogg Theora] format.
Other free video formats:
[http://dirac.sourceforge.net/ Dirac] (another free video format in development)
Desktop publishing and graphics
OpenDocument - This group of office document formats is seen as an excellent alternative to proprietary formats such as those used by Microsoft Office and is gaining widespread support in open-source office suites. OpenDocument recently became an International standard - ISO/IEC 26300. More information can be found on the [http://www.odfalliance.org/ ODF Alliance website].
Scalable Vector Graphics (SVG) - SVG is a vector graphics format developed by the World Wide Web Consortium (W3C), which is responsible for major Web standards such as HTML, CSS and PNG. SVG is recommended as an alternative to proprietary vector graphics formats such as Adobe Illustrator (AI). A list of [http://www.svg-whiz.com/wiki/index.php?title=Design_Tools design tools] which support this format is available. For more information, see the [http://www.w3.org/Graphics/SVG/ W3C's SVG pages].
[http://docs.scribus.net Scribus] is also a good alternative for desktop publishing.
General multimedia
Other multimedia format types are subject to legal restrictions.
Flash
There are several projects working to create a free implementation of Macromedia Flash, so that people can view Flash animations without resorting to non-free software:
[http://gplflash.sourceforge.net GPLFlash] (and GPLFlash2)
[http://www.schleef.org/swfdec/ SWFDec]
[http://www.gnu.org/software/gnash/ Gnash] Currently the most complete implementation.
Other
Other popular formats are subject to restrictions in some jurisdictions.
Java
Free implementation of Java is ongoing in many places, including [http://gcc.gnu.org/java/ GCJ], GNU Classpath, [http://www.nongnu.org/gcjwebplugin/ gcjwebplugin] and the new Apache Harmony. Together they aim to provide a full Java platform as Free software. Current implementations are already being used to run OpenOffice.org 2's Java components, the Eclipse IDE and many other applications. Eventually, the need for non-free Java should hopefully disappear.
Additional Resources
Wikipedia article on open formats - http://en.wikipedia.org/wiki/Open_format
FreeFormats (last edited 2008-08-06 16:19:29 by localhost)