Seems to me they would do that so people can backup their roms and then do the delete, instead of just moving them to a different folder. If I was using it to remove, say, horizontal games... I would select that in the catver.ini, which pulls up a list of games I have with a check under each column for each type of artwork it's scanning for. Like a table: zip name, game name, title, marquee, snap, video, cabinet. Each column has a check in it if the scan finds your search query in a folder. Right there you know too what artwork you're missing for those who want to fill the list (or help submit some snaps). You can also opt not to keep that artwork if you wanted to remove a game from your lineup, (or even a full category like mahjong). Then press a button and the program builds output folders and, based on your query, removes the games you select from that list. Then you change the category, and it pulls up a list of that category. Instead now it scanned the set you have without mahjong games in it. Then you remove, say, all the Neo Geo games and assets based on your query. You're basically just fine-tuning your list based on what you have. Correct? But what if a new mame set comes along, now i have to redo the whole process again on a full set to be accurate. That kinda suxorz, no? Though I think I got a sense of what we're talking about, I'm trying to think about the logic behind it so I know what you're asking it to do. Maybe I'm just over-thinking it? It wouldn't be the first time, but it should be simple and straight-forward (approachable) in what it does. Or I just wanna make sure I'm on the same plane here. @Null: The plugin then would just remove the stuff you filter manually in GameEx? Or would be something that does all that but also takes advantage of GameEx's stuff (automagically finding art paths comes to mind), even crosses that with removing games you remove from the list in your filters? I cans see that being handy as well.