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Summary.
XMP.
ID3.
iTunes.
Quicktime.
SearchMonkey.
MediaRDF.
LOM.
METS.
EXIF.
CableLabs 1.1.
CableLabs 2.0.
DIG.
MIX.
FRBR.
MediaRSS.
TXFeed.
YouTube.
VRA.
IPTC.
TVA.
EBUCore.
EBUP.
MPEG7.
SMTPD.