--3gp-performer (str) [lang=3str] [UTF16]
Set a 3gp performer or artist tag
--3gp-genre (str) [lang=3str] [UTF16]
Set a 3gp genre asset tag
--3gp-year (int)
Set a 3gp recording year tag (4 digit only)
--3gp-rating (str) [entity=4str] [criteria=4str] [lang=3str] [UTF16]
Set a 3gp rating tag
--3gp-keyword (str) [lang=3str] [UTF16]
Format of str is 'keywords=word1,word2,word3,word4'
--3gp-classification (str) [entity=4str] [index=int] [lang=3str] [UTF16]
Set classification tag
--3gp-location (str) [lang=3str] [UTF16]
Set a 3gp location tag (defaults to Central Park)