What does UDF stand for?

What does UDF mean?

UDF	Union pour la démocratie française International » French
UDF	United Democratic Front Governmental » Politics
UDF	United Democratic Front Regional » African
UDF	User Defined Function Computing » Assembly
UDF	Universal Disk Format Computing » Drivers
UDF	Universal Disk Format Computing » General
UDF	Universal Disc Format Miscellaneous » Unclassified
UDF	User Defined Field Computing » General
UDF	User Definable Function Miscellaneous » Unclassified
UDF	United Dairy Farmers Miscellaneous » Unclassified
UDF	Uniqueness Database File Computing » Databases
UDF	Universal Data Format Miscellaneous » Unclassified
UDF	United Democratic Front in South Africa Governmental » United Nations
UDF	Windows NT Uniqueness Database File Computing » File Extensions
UDF	Unit Development Folder Governmental » Military
UDF	User Defined Format Computing » Assembly
UDF	Excel User Defined Function Computing » File Extensions
UDF	Photostyler Image Filter Computing » File Extensions
UDF	Filter (Photostyler) Computing » File Extensions
UDF	Universal Data File Computing » Databases
UDF	Unit Data File Governmental » Military
UDF	Ulster Defence Force Miscellaneous » Unclassified
UDF	Univeral Disk Format Miscellaneous » Unclassified
UDF	Ultimate Destruction Force Governmental » Military
UDF	Unión Demócrata Foral International » Spanish