Re: http://sourceforge.net/projects/atomicparsley/forums/forum/514419/topic/1687885?message=4206988
United States (01)
Not Rated mpaa||0|
G mpaa|G|100|
PG mpaa|PG|200|
PG-13 mpaa|PG-13|300|
R mpaa|R|400|
NC-17 mpaa|NC-17|500|
Unrated mpaa|UNRATED|900|
Not Rated us-tv||0|
TV-Y us-tv|TV-Y|100|
TV-Y7 us-tv|TV-Y7|200|
TV-G us-tv|TV-G|300|
TV-PG us-tv|TV-PG|400|
TV-14 us-tv|TV-14|500|
TV-MA us-tv|TV-MA|600|
Unrated us-tv|UNRATED|900|
These alone (added using a hex editor) are not enough by themselves to get iTunes to see the rating. Not sure at all what is missing.