Failed to mount disc repository for disc game

Ever since I took the proper steps, copied my games from BD-ISO to hard drive, then dumped my games via FileZilla, I've been getting this one error where it says it failed to mount my disc.
No matter how I did it, I always get it even after putting the files into the proper folder in "dev_hdd0/disc/<gameID-[name]>".

So any help, by any chance? The same error has happened across four games of mine and
I haven't seen any type of information shown on Quickstart that mentions on what to do with this type of situation, unless I missed it.

Code:

E SYS: Failed to mount disc directory for the disc game BCUS98372
E GUI: Boot failed: reason: Invalid file or folder, path: M:/Emulators/RPCS3/dev_hdd0/disc/BCUS98372-[LittleBigPlanet2 Special Edition]/PS3_GAME
E SYS: Failed to mount disc directory for the disc game BCUS98208
E GUI: Boot failed: reason: Invalid file or folder, path: M:/Emulators/RPCS3/dev_hdd0/disc/BCUS98208-[LittleBigPlanet]/PS3_GAME
E SYS: Failed to mount disc directory for the disc game BCUS98167
E GUI: Boot failed: reason: Invalid file or folder, path: M:/Emulators/RPCS3/dev_hdd0/disc/BCUS98167-[ModNation Racers]/PS3_GAME
E SYS: Failed to mount disc directory for the disc game BCUS98124
E GUI: Boot failed: reason: Invalid file or folder, path: M:/Emulators/RPCS3/dev_hdd0/disc/BCUS98124-[Ratchet Clank Future A Crack In Time]/PS3_GAME

EDIT: Forgot to mention that the main error that pops up when I try to play one of these games is Booting failed: The selected file or folder is invalid or corrupted.