SQL & PL/SQL :: Parsing BLOB Contents

I have some BLOB contents in the format of...

DK99F17,AA,032820130840,Other
ABCD,AA,032820130840,OV
AAZ123,BC,032820130932,DWL
CBA12345,ZA,032820130939,Other
Each BLOB is associated to a file name in the format...
03282013100002_thisfile.txt

The blob for each file may be zero rows to n rows in size, but typically there are 2 to 5 rows (four rows were shown in the rows above).The following kind of gets me there, but not quite as it splits up the BLOB rows at the comma and not the line break (HEX=0D0A / CRLF).

with rec as
(select fs.file_name, utl_raw.cast_to_varchar2(fs.file_data) file_data
from tada.files_store fs
where fs.file_name like '%citations.txt'
and trunc(fs.date_created) = to_date('26-MAR-2013','DD-MON-YYYY'))
[code].....