Yes That's it. I used the Smoke monster packs on my previous everdrive and those are split into 250 files folder and now I'd like to put all the roms into one folder on this new one (it's on the way)
I tried that once and I ran into an issue where the value of pages exceeded 1/99 and did something like 200/20 where it gave a bunch of glitched up names of roms which I only found when going backwards through the folder and not at the 1st rom, oddly leaving them alone caused the folder to give the Error message where I had to delete the entire folder just to access it again.
This tends to be averted if you paste the roms backwards instead of all at once, also I can't be the only one who misses the classic Smoke Monster complete rom sets back in the middle 2010's, kinda gave up updating sets after they changed to txt ones.
By pasting I mean if you just copy and paste them into a folder without an extractor though I recall it happening in a extractor too, I think...