[gdal-dev] Trouble with French Ecw map

[Nicolas Ragg]

On 15/04/2015 07:59, Jean-Claude Repetto wrote:
> Please run the command : gdalinfo -mdd ECW file.ecw
> What are the metadata (ECW) :
> PROJ= ?
> DATUM= ?
>
> Jean-Claude
>
>
Hello
Thank for your support, here they are :
  PROJ=epsg:27592
  DATUM=epsg:27592
Do you see something weird?

I've noted that i have another map of the same provider, its gdalinfo is 
reported as following

Coordinate System is:
PROJCS["LM2FRANC",
     GEOGCS["N.T.F.",
         DATUM["NTF",
             SPHEROID["CLA80IGN",6378249.2,293.4660213]],
         PRIMEM["Greenwich",0],
         UNIT["degree",0.0174532925199433]],
     PROJECTION["Lambert_Conformal_Conic_2SP"],
     PARAMETER["standard_parallel_1",45.89891888888889],
     PARAMETER["standard_parallel_2",47.69601444444444],
     PARAMETER["latitude_of_origin",46.80000000000000],
     PARAMETER["central_meridian",2.337229169999754],
     PARAMETER["false_easting",600000],
     PARAMETER["false_northing",2200000],
     UNIT["Meter",1]]
Origin = (1079250.000000000000000,1851300.000000000000000)
Pixel Size = (50.000000000000000,-50.000000000000000)
Metadata:
   COLORSPACE=RGB
   COMPRESSION_RATE_TARGET=10
   VERSION=2
Metadata (ECW):
   PROJ=LM2FRANC
   DATUM=NTF
   UNITS=METERS

I'm pretty sure something is wrong in the first file, with gdal 1.7.2 
with matching ECW plugin there was no issue

Thanks again for the support

Nicolas