Does Slicer Remover/Keeper work with .mov files?

How should I use this tool because I keep getting an error message saying it’s an invalid stack or something along those lines? I’m using the FFMPEG function to import my video because I couldn’t get Quick Time to work.

@Anna_Martin Sorry this has been sitting unanswered for so long.

I assume you used File > Import > Movie (FFMPEG) with the option Use virtual stack? The Slice Remover and Slice Keeper commands don’t seem to work well with virtual stacks. When I run Image > Stacks > Tools > Slice Remover on a virtual stack created from a single .avi file, I get the following exception:

(Fiji Is Just) ImageJ 2.0.0-rc-49/1.51d; Java 1.8.0_92 [64-bit]; Windows 7 6.1; 345MB of 96000MB (<1%)
java.lang.IllegalArgumentException: Argument out of range: 1
    at ij.VirtualStack.deleteSlice(
    at Slice_Remover.removeSlices(
    at ij.IJ.runUserPlugIn(
    at ij.IJ.runPlugIn(
    at ij.Executer.runCommand(

As a workaround, open the video without Use virtual stack option unchecked.

Importing a virtual stack uses so much memory and takes so long it eventually just crashes Fiji. Is there another way to do this? Or a suggested free video editing program so I can speed up and compress these videos so they aren’t quite so massive and long?