If I create a zip with the following content
cb0001.jpg
cb0001_001.jpg
cb0001_002.jpg
...
cb0001_173.jpg
And then add it to calibre I get a CBZ with cb0001.jpg as the cover - good
If I create a zip from the same images with the following file names
cb0001.jpg
cb0001-001.jpg
cb0001-002.jpg
...
cb0001-173.jpg
And then add it to calibre I get a CBZ with cb0001-001.jpg as the cover - bad
Its a trivial issue, but I'm wondering why it happens. Is there something special about having a '-' rather than a '_'.
BR