QGIS » QGIS Application

In my: Settings > Options..., for GDAL, i have choosen "*High compression*" in my "*GDAL driver options*"...

First problem:

In QGIS 2.14.20/2.18.14, when i use : Menu Raster > Conversion > Translate (Convert format)

If i decide to check "Creation Options", QGIS have already selected "High compression" but in command line, we have : "gdal_translate" and if i launch the translation, i have no compression...

To change it, i must to SELECT ANOTHER profile of compression AND the desired compression "High compression" to change the command line into : "gdal_translate -co COMPRESS=DEFLATE -co PREDICTOR=2 -co ZLEVEL=9"... and if i launch the translation, QGIS effectively compress my data...

In QGIS 2.99 (QGIS code revision : aa68a9faec), when i use : Menu Raster > Conversion > Translate (Convert format)
If i choose "High compression", the board of "Additional creation parameters" stay empty... not with the other choices.

=====================
2nd problem:

When i use : Menu Raster > Conversion > Translate (Convert format)

In QGIS 2.14.20, i have no problem : if i check Batch mode, i can run it... and after a few minutes, i start getting results files.

In QGIS 2.18.14, i have a problem : if i check Batch mode, i can run it too... but, it starts without ever succeeding. I can wait as long as i want, nothing happens, no files created...

No tried with QGIS 2.99 for the time...