Liblicense/Metadata Table
Table of File Metadata Information
| Format | Form of Metadata | Location of Metadata | Links |
| Audio | |||
| MP3 | XMP / Native id3 tags | The PRIV,XMP field / WCOP tag | XMP Spec ID3v2.3 Spec |
| Vorbis | XMP / Native comment field | XMP comment field / LICENSE comment field | Ogg Vorbis Docs |
| FLAC | Native comment fields (id3v2 or vorbis-style comments) | Same as with MP3 for id3v2 or Vorbis for vorbis-style comments | FLAC Format Spec |
| Monkey's Audio (APE) | Native Vorbis-like comment field | AFAIK, there is no standard tag spec | |
| Images | |||
| JPEG | XMP | APP1 Markers | XMP Spec |
| JPEG 2000 | XMP | UUID Box | XMP Spec |
| TIFF | XMP | XMLPacket tag | XMP Spec |
| PNG | XMP | iTXt, XML:com:adobe:xmp field | XMP Spec |
| GIF | XMP | Application block | XMP Spec |
| SVG | RDF | /svg/metadata/rdf | CC Wiki, SVG, based on Inkscape |
| PSD (Adobe Photoshop) | XMP | Resource block | XMP Spec |
| Video | |||
| ASF (eg AVI) | Native tag | Content Description Object | ASF metadata |
| Matroska | Native tag | COPYRIGHT tag | Matroska Tagging Spec |
| Quicktime | Native tag | kMDItemCopyright(old)/kUserDataTextCopyright(new) tag | Quicktime 7 API Reference XMP Spec |
| OGG | No metadata standard | Ogg Metadata Draft | |
| Theora | Theora comments (similar to Vorbis comments) | Theora Spec | |
| Flash | RDF | ? | |
| Documents | |||
| XMP | metadata field | XMP Spec | |
| Postscript/EPS | XMP | Document-level metadata | XMP Spec |
| HTML | RDFa | <a rel="license" href="..."></a> | CC Wiki, RDFa |
| SMIL | RDF | /smil/head/metadata@id="meta-rdf"/RDF | CreativeCommons SMIL Module |
| RSS 1.0 | /RDF/channel/license or /RDF/channel/item/license | CreativeCommons RSS 1.0 Module | |
| RSS 2.0 | /rss/channel/cc:license or /rss/channel/item/cc:license | CreativeCommons RSS 2.0 Module | |
| Atom | /feed/entry/link@rel=license | Atom License Extension | |
| Any XML | XMP | Wherever valid | XMP Spec |
| OpenOffice.org (OASIS) | OO.org CC License Add-In SoC Project is working on the spec | ||
| MS Office (2003) | DocumentSummaryInformation Infile | CreativeCommons_LicenseURL property | Office Add-in |
| MS Office OpenXML (2007) | ? | ? | OpenXML Spec Relevant mailing list post |
