MAWG	Relation	OGG properties	How to do the mapping	Datatype	XPath	Tested
Descriptive Properties (Core Set)
Identification
identifier	exact	Name	Name field in skeleton header (new)	String	N/A
title	exact	Title	TITLE field in vorbiscomment header	String	N/A
	exact	Title	Title field in skeleton header (new)	String	N/A
	related	Album	ALBUM title in vorbiscomment header	String	N/A
language	exact	Language	Language field in skeleton header (new)	language code	N/A
locator	exact		file URI from system	URI	N/A
Creation
contributor	exact	Artist, Performer	ARTIST and PERFORMER vorbiscomment headers	Strings	N/A
creator	related	Organization	ORGANIZATION field in vorbiscomment header		N/A
date	exact	Date	DATE field in vorbiscomment header	ISO date format	N/A
location	exact	Location	LOCATION field in vorbiscomment header	String	N/A
Content description
description	exact	Description	DESCRIPTION field in vorbiscomment header	String	N/A
keyword	N/A				N/A
genre	exact	Genre	GENRE field in vorbiscomment header	String	N/A
rating	N/A				N/A
Relational
relation	related	Version, Tracknumber	VERSION (version of a title), TRACKNUMBER (CD track) fields in vorbiscomment header	Strings	N/A
collection	related	Album	ALBUM field of vorbiscomment header	String	N/A
Rights
copyright	exact	Copyright	COPYRIGHT field of vorbiscomment header	String	N/A
policy	exact	License	LICENSE field of vorbiscomment header	String	N/A
Distribution
publisher	related	Organization	ORGNIZATION field of vorbiscomment header	String	N/A
targetAudience	more specific	Role	Role field of Skeleton header (new)	String	N/A
Fragments
fragments	N/A				N/A
namedFragments	N/A				N/A
Technical Properties
frameSize	exact		extract from binary header of video track	int, int (width x height)	N/A
compression	exact	Content-type	Content-type field of Skeleton header	MIME type	N/A
duration	exact		calculate as duration = last_sample_time - first_sample_time of OggIndex header of skeleton	Float (or rather: rational - rational)	N/A
format	exact	Content-type	Content-type field of Skeleton header	MIME type	N/A
samplingRate	exact		calculate as granulerate = granulerate_numerator / granulerate_denominator of Skeleton header	Rational (or rather int / int)	N/A
frameRate	exact		calculate as granulerate = granulerate_numerator / granulerate_denominator of Skeleton header	Rational (or rather int / int)	N/A
bitRate	exact		calculate as bitrate = length_of_segment / duration from OggIndex headers of skeleton	Float	N/A
numTracks	exact	Tracknumber	TRACKNUMBER field of vorbiscomment header (track number on album)	Int	N/A