ECW writer: This format does not support writing the RGB/RGBA bands in the raster with other extra bands.

Hi @ilmachairas,

Here is an article to get you started: How to Convert GeoTIFF to ECW

It goes into detail about how to change band types and how to add/remove specific bands specifically for converting to ECW.

The main transformers you would use in this situation would be the:

• RasterBandInterpretationCoercer - to convert band types
• RasterSelector - to select which bands you want to change
• RasterBandRemover - removes bands selected by the RasterSelector

Hopefully that helps,

-Liz