ROMCODES

Using the Manual code, you can easily find out which game it belongs to.

Take the last part of your manual code, the country code, and compare to the charts below.
The romcode you should use is the one ending is one of the letters in your corresponding chart

Example:
-I have an English Mortal Kombat (Manual Code: DMG-C9-USA).
-The country code would be USA.
-Checking the chart, USA uses romcode ending in E or A
-There are 2 games titled "Mortal Kombat" (C9E and C9J).
-So DMG-C9E is the correct rom, since J is not an option for my country code.

If your manual code ends in one of these Country codes:
(JPN or No country code)
Then use the romcode the ends in:
A=English*
J=Japanese
Y=Bilingual(Japan)

If your manual code ends in one of these Country code:
(USA or CAN)
Then use the romcode the ends in:
A=English*
E=English*

If your manual code ends in one of these Country code:
(AUS, EUR, FRG, FAH, GPS, ITA, NOW, SCN, ESP, UKV)
Then use the romcode the ends in:
A=English*
D=German
E=English*
F=French
H=Dutch
I=Itaian
P=Multilingual(Europe)
S=Spanish
U=Australian English
W=Swedish

*A and E appear across multiple regions, if it's the same rom in use.
**For example, the same Alleyway rom was used in all regions, so all regions use the DMG-AWA romcode.