never mind. something like this works. the constant keyword filled in the defaults.

infile '/u02/data/emusic/EMUSIC.song_dl_history.00.txt' "str X'02'"
truncate
into table songs
fields TERMINATED BY X'01'
trailing nullcols(
USER_ID,
SONG_ID,
DATE_DOWNLOADED date "yyyy-mm-dd" nullif date_downloaded="0000-00-00",
RIGHT_ID filler,
album_id filler,
created_by constant 1,
created_date sysdate,
updated_by constant 1,
updated_date sysdate)