Code Most Common Codes Found in Rom Filenames
[!] Perfect copy of the game
[U] USA and Canada
[J] Japan
[E] Europe
[JUE] Japan, USA and Europe
[V#.#] Some games were commercially sold with different versions/variations (example: V1.1)
Code Game Modifications Found in Rom Filenames
[c] Cracked to run better on emulators or to take advantage of special features
[f] Fixed to run better on emulators
[h] Hacked game with modifications to sound, graphics, levels, game engine, etc
[p] Pirate is a form of hack but they're usually sold in countries like China
[t] Trainer contains cheats added to game
[T-] Old Translation of game (game has been translated to another language; example: T+Eng would be to english)
[T+] New Translation of game (game has been translated to another language; example: T+Eng would be to english)
Code Other Codes Found in Rom Filenames
[a] Alternate version of a rom
[b] Bad dump; game has problems
[o] Overdump contains useless repeated data (file size is bigger than it should be)
(Unl) Unlicensed commercial release
(-) Unknown year
(M#) Multiple languages; example: M4 for four languages
(###) Checksum value
(??k) Rom size
ZZZ_ Unclassified
[C] Game Boy Color enhanced or exclusive
[S] Super Game Boy enhanced
Code All Country Codes Found in Rom Filenames
(A) Australia
(C) China
(E) Europe
(F) France
(FC) French Canadian
(FN) Finland
(G) Germany
(GR) Greece
(HK) Hong Kong
(I) Italy
(J) Japan
(K) Korea
(NL) Netherlands
(PAL) Europe and other PAL TV regions
(PD) Internet release for distribution
(S) Spain
(SW) Sweden
(U) USA and English Canadian
(UK) United Kingdom
(Unk) Unknown country