Sounds good. I like your format way better than mine as it works for all numbers of episodes in a file with the simple change of m variable. I will use this instead of mine.

Thanks for your quick responses.

I'm not having problems with any particular file, but cartoons/anime in general. The renaming format works perfectly once the files are set for multi-episode renaming.

I don't think I am able to use the list/presets for this since there isn't any particular filter I could run to guarantee it will ...

Is it possible to add a new preference option for allowing an easy conversion from multi-episode files named as single episodes to the correct multi-episode name?

The preference option would need to determine how many episodes are in each file, so by default it would be set to 1. For double ...