[Gdal-dev] ecw-compressing >500MB files

[Ken Boss]

Under FWTools 0.9.8, I can successfully use gdal_translate to generate
an ECW output from a 400 MB input file.  If I try to do the same with a
750 MB input, however, I get: 

gdal_translate -of ECW -co target=95 two_tiles.tif two_tiles.ecw
Input file size is 18988, 14016
0.100 - done.
ERROR 4: `d:\ken_mrsid\test_tiles\two_tiles.ecw' does not exist in the
file syst
em,
and is not recognised as a supported dataset name.

I'm guessing this might owe to input file size limitations, but looking
at the ECW 3.1 SDK page at http://www.ermapper.com/ecw/ and the price
list at http://www.ermapper.com/document/doc.aspx?doc_id=54, I'm left
with the distinct impression that the free GPL-style license for the SDK
(surely this is what gdal uses?) provides unlimited compression.

Can anybody clarify this for me?

Thanks,

Ken Boss