I've been around here quite a while and had a few DSTT's. Bri is correct, it is advisable to put all your games in a single "games" folder and you do not need to create multiple games folders.Bri said:I don't think the number of files in your "games" folder was ever the problem.
Actually, having a single "games" folder is beneficial for sorting as well. Also keep a (normally empty) "tmp" folder. Whenever you add a new game, just sort the games alphabetically, select all, drag to tmp folder, select all, and drag back to games folder. It takes about 5 secs and your games will then always appear sorted in the DS menu.