Saturday, October 22, 2011

Meaning of special characters _(U)_[!] in filenames of a ROM file

Question

What is the meaning of special characters as _(U)_[!], which are usually at the end of an ROM-image-file-name (e.g. Mario Tennis (E) [!].v64 or Bomberman_Hero_(U)_[!].v64)?

My first thought was that the E for example stands for games with english translation.

Answer

It's a convention used to distinguish different dumps of the same game. They are mainly associated with GoodTools, a suite of applications containing databases listing software for consoles and computers

(E), (U) and (J) refer to a region; resp. Europe, USA and Japan. There are other letters for specific countries (e.g., a game only released in France would be (F)), but those three are the most common. This doesn't say anything about which languages are included; for that, (M#) is usually used to indicates the number of different languages - (M5) means the game contains 5 different languages.

[!] signifies a unmodified and exact dump, in contrast with [b] bad dumps, [o] overdumps, [u] underdumps, [h] hacks, and other modified dumps.

Wikipedia has a much more comprehensive list and explanation.

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