Here is a geo referenced dem that Qgis can read
16 bit signed ( every tone is 0.5 Meters )


Code:
 Group = Mapping
     ProjectionName     = SimpleCylindrical
     CenterLongitude    = 0.0 <degrees>
     TargetName         = Earth
     EquatorialRadius   = 6378100.0 <meters>
     PolarRadius        = 6356800.0 <meters>
     LatitudeType       = Planetocentric
     LongitudeDirection = PositiveEast
     LongitudeDomain    = 180 <degrees>
     MinimumLatitude    = 10.0
     MaximumLatitude    = 85.0
     MinimumLongitude   = -170.0
     MaximumLongitude   = -12.0
     UpperLeftCornerX   = -18924203.653647 <meters>
     UpperLeftCornerY   = 9462101.8268233 <meters>
     PixelResolution    = 463.82852092271 <meters/pixel>
     Scale              = 240.0 <pixels/degree>
   End_Group
 End_Object
in isis3 "cub" format . gdal in Qgis has no problems with this image type
but it is 1.3 Gig image unzipped
-- g-drive
https://drive.google.com/file/d/0B6Z...ew?usp=sharing