Extacting 1:24K DEMs

[Clifford A Behrens]

I have been trying to extract a USGS 1:24K DEM using m.dem.extract.  The file
is in ASCII (I can read it).  What I get is the following:


Current Region Settings-----------------------------
rows:       3000
cols:       1075
north:      4659960
south:      4420040
east:       585960
west:       500040
ns_res:     80.000000
ew_res:     80.000000

Reading Elevation Tape...     
--------------------------------------------------------------------------------
WARNING: unexpected C-type record encountered
(See GRASS4.1 manual for detailes)
Trying to recover...
--------------------------------------------------------------------------------
WARNING: unexpected C-type record encountered
(See GRASS4.1 manual for detailes)
Trying to recover...
---------------------

for all of the files in this DEM dataset.  There supposedly exists 1 C-type
record.  Is my problem from using m.dem.extract on a disk file rather than
a tape?

Thanks in advance for any help offerred,

Cliff Behrens