metadata.set(XMPDM.TRACK_NUMBER, trackNum.getTrackNumber());
//metadata.set(XMPDM.NUMBER_OF_TRACKS, trackNum.getNumberOfTracks()); // TODO
}
// Comment
AppleCommentBox comment = getOrNull(apple, AppleCommentBox.class);
addMetadata(XMPDM.LOG_COMMENT, metadata, comment);
// Encoder
AppleEncoderBox encoder = getOrNull(apple, AppleEncoderBox.class);
// addMetadata(XMPDM.???, metadata, encoder); // TODO