> 
> Well, I did untar and uncompressed the files and I got a number of files :
> >W020n40.dem     56 Mb
> >W020n40.dmw
> >W020n40.hdr
> >W020n40.prj
> >W020n40.sch
> >W020n40.src    28 Mb
> >W020n40.stx
> 
> I give the size for the largest files only. The others are only a few bytes
> large.
> 
> I read the readme file, but it does not say how to handle the files.
> 
> I have the feeling that the DEM file is not a proper one ( The DEM extension
> is not correct here).
> 
> I downloaded the file from :
> http://edcdaac.usgs.gov/gtopo30/gtopo30.html
> 

If my memory serves me correctly, then I've used files from same site
and the set of files seems to be OK. File size is probably OK too, my
memory failed here: whole package was probably >80 MB. Have you tried my
converter (see my previous post)?

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