[Benchmarking] ECW data set, a proposal

[Andrea Aime]

Hi,
I was wondering what can we use as the ECW data set.
I have on my disk a BlueMarble NG ECW image which I downloaded
back at the times when geotorrent.org was still alive and kicking,
gdalinfo reports:

gdalinfo world-topo-bathy-200408-3x86400x43200.ecw

Driver: ECW/ERMapper Compressed Wavelets
Files: world-topo-bathy-200408-3x86400x43200.ecw
Size is 86400, 43200
Coordinate System is:
GEOGCS["WGS 84",
     DATUM["WGS_1984",
         SPHEROID["WGS 84",6378137,298.257223563,
             AUTHORITY["EPSG","7030"]],
         TOWGS84[0,0,0,0,0,0,0],
         AUTHORITY["EPSG","6326"]],
     PRIMEM["Greenwich",0,
         AUTHORITY["EPSG","8901"]],
     UNIT["degree",0.0174532925199433,
         AUTHORITY["EPSG","9108"]],
     AXIS["Lat",NORTH],
     AXIS["Long",EAST],
     AUTHORITY["EPSG","4326"]]
Origin = (-180.000000000000000,90.000000000000000)
Pixel Size = (0.004166666666667,-0.004166666666667)
Corner Coordinates:
Upper Left  (-180.0000000,  90.0000000) (180d 0'0.00"W, 90d 0'0.00"N)
Lower Left  (-180.0000000, -90.0000000) (180d 0'0.00"W, 90d 0'0.00"S)
Upper Right ( 180.0000000,  90.0000000) (180d 0'0.00"E, 90d 0'0.00"N)
Lower Right ( 180.0000000, -90.0000000) (180d 0'0.00"E, 90d 0'0.00"S)
Center      (  -0.0000000,   0.0000000) (  0d 0'0.00"W,  0d 0'0.00"N)
Band 1 Block=86400x1 Type=Byte, ColorInterp=Red
   Overviews: arbitrary
Band 2 Block=86400x1 Type=Byte, ColorInterp=Green
   Overviews: arbitrary
Band 3 Block=86400x1 Type=Byte, ColorInterp=Blue
   Overviews: arbitrary


I guess it could be interesting for the ECW benchmarking. As for turning
it into a mosaic of TIFFs for the mosaic part heh, that will be a little
painful, especially since the tiles need to be less than 2GB (last
time I tried I think I had to limit myself to North America to be able
and extract a file of less than 2GB, uncompressed).

If people think it's good I can upload it to the server.

Oh, btw, what's the MapServer status vs jpeg compression? Shall we
use JPEG compressed or just go for the uncompressed TIFFs?

Cheers
Andrea