Sorry, but in the version of 27/06, the last line of the image EZA is not corect if the image has an odd size !
The next version of MI-3 with a not very powerful slideshow, but useful for testing the backup format.
Be careful, the keyboard is not active when loading files. With BMPs, it can be long.
Spectrum files are ignored for the moment.
also avoid enabling color cycles if your image folder contains only images with a color cycle. You would have trouble stopping the slideshow.
I would certainly do the batch conversion in a common format.