I'm quite new to GDAL and coding in general. I'm trying to convert a whole bunch of TIFFs to ECW's, but just wanted to test with one to start however I think I might be having problems with syntax. I run the below.bat file but nothing happens.

REM"C:\OSGeo4W\bin\gdal_translate.exe" -of GTiff -of ECW 440554775.tif 440554775.ecw
  • This question: Convert TIFF to ECW in QGIS may help.
    – ahmadhanb
    Dec 8, 2022 at 0:27
  • 1
    What do you think the REM accomplishes here?
    – Vince
    Dec 8, 2022 at 5:10
  • You have provided two outputformats -of GTiff -of ECW. That does not make sense.
    – user30184
    Dec 8, 2022 at 8:27
  • I didn't realize REM was remarks, thanks.
    – Kevin
    Dec 8, 2022 at 16:07

1 Answer 1


In DOS/batch REM is a comment or a remark. It means ignore everything on this line. So your gdal_translate command just gets skipped.

But even if you uncommented by removing the REM, your command would fail as the OSGeo4W ECW package gdal-ecw is read-only:

Write support for ECW and JPEG2000 via the ECW SDK is not available as part of OSGeo4W.

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