[MonSoon12]

I will add to MC to have One or the other naming convention, specially since like yourself, some use Movie Set Artwork Automator and others Artwork Beef.

I am guessing that each movie in Main Folder: Iron Man Collection, has its own sub folder?
ie: Iron Man Collection\Iron Man (2008)\Iron Man (2008).mkv

If that is the case, then for the movie scraper if you select Movies are in separate folders that match the title, then Kodi would pick up the poster.jpg/png image instead of <moviename>-poster.jpg/png
But I use the <moviename>-poster etc format with no hassles.
As for movieset images, logo, clearart etc, that is correct for MSAA but not for Artwork Beef. Again, I will have options for the user to select the naming of these files.

I am not sure if MSAA supports extrafanart/extrathumbs for Movie Sets, or if it does, how the naming should be.

I don't mind moving to Artwork Beef as Artwork Downloader is no longer supported, but need to know if MC does, so I can get the files renamed accordingly.
Yes, each individual movie in the set has a sub folder
Sub Folder: Iron Man (2008)
extrafanart
extrathumbs
banner.jpg
clearart.png
disc.png
fanart.jpg
Iron Man (2008) ~ {BR-XviD - 720p}.avi
Iron Man (2008) ~ {BR-XviD - 720p}.nfo
Iron Man (2008) ~ {BR-XviD - 720p}-trailer.mp4
landscape.jpg
logo.png
poster.jpg

Damn you are right, I didn't select that option for movies in separate folders with the source and scraper. You just saved me sooo much time!
The OCD in me, just likes the consistency if banner, disc etc don't have to use the <moviename>-poster format. I would prefer not too.