COBOL 3.2 on z/OS reading variable len files

Hi,

I try to read any kind of VB file but I got FS 39 (lrecl mismatch)


FD MYFILE
RECORDING V BLOCK 0 RECORDS
RECORD IS VARYING FROM 1 TO 32756 DEPENDING ON WS-CPT.

01 MREC.
     05 FILLER PIC X(01) OCCURS 1 TO 32756 DEPENDING ON WS-CPT.



(.....)



OPEN MYFILE => File STATUS 39


MYFILE is VB, LRECL 1328, but I do not want to focus on lrecl 1328, it
could 
be any other LRECL less or equal to 32756



Any ideas dears ?

Thanks a lot....