etl4.001	(F,2952,2952,C-type) (120*51=6120record) (18066240byte 16bit-checksum(B,V)=(46390,64839))
etl4c	(F,2952,2952,C-type) (120*51=6120record) (18066240byte 16bit-checksum(B,V)=(46390,64839))
etl4c.Z	(F,2952,2952,C-type) (120*51=6120record) (4340029byte 16bit-checksum(B,V)=(41352,22823))
