Garlic OS comes with a file called mame.csv which is used for mapping the ROM name (e.g., cvs2mf.zip) back to its proper name (e.g., Capcom Vs. SNK 2: Millionaire Fighting 2001 (Japan, Rev A) (GDL-0007A)). It's essentially used as a lookup table.
The CSV format stands for Comma-Separated Value and is one of the simplest formats that has ever existed. First is the name of the ROM file, then a comma, then the proper name of the game. It's seriously that simple.
Most computers will typically open CSV files in a speadsheet program (since a CSV is conceptually a set of rows and columns) like Microsoft Excel, Apple Numbers, LibreOffice Calc, or even Google Sheets. However it's important that you save changes back as CSV format, and not the spreadsheet's preferred/native format.
You can also open a CSV in any editor that can read plain text files. (If you don’t have a preferred code editor, I can suggest VS Code.)
Garlic OS ships with a 1.1 MB copy of mame.csv, so MAME (and other arcade) emulation has useful names out-of-the-box.
But we can do better.
A project called tiny-best-set-go provides a more complete, 1.9 MB copy of mame.csv.
Since there is copyrighted content on this page, I don't want to link to it directly. However one .zip file that this project provides is called tiny-best-set-go-arcade-names-garlic.zip. Inside of this, you will find a mame.csv file.
That file is here: mame-original.csv.
If you prefer longer, and more thorough names, then this is all you need. You can skip ahead to “Updating mame.csv on your Garlic OS SD card” below.
However, if you prefer shorter names without all of the extra details, read on.
TLDR: Here is the already-cleaned version: mame.csv.
You can always edit the file by hand. There's nothing wrong with that, but if there's ever a new version, you'll need to re-apply the changes manually. :/
If you want to learn how to perform the clean-up, read the source code for cleanup-mame-csv.sh. Understanding the code requires knowledge of Bash, GNU sed, and Perl-compatible regular expressions (PCRE). There isn't a good way around that, but essentially, we're asking a script to identify matching patterns, and then replacing those matches.
Whenever there is a new update to an original mame.csv file, this script can be re-run over the updated file, and the same cleanup rules will be applied.
Note
If there's something I missed, or you think that I lost the meaning in my changes, please open an issue describing the issue, and I'll take a look at it.
Inside the ROMS volume of your SD card, find the CFW → config folder, then replace mame.csv with your updated copy.
See the Terminal command…
Open the Finder window:
open /Volumes/ROMS/CFW/config/You can then copy your new/edited mame.csv file over the one that's on the SD card.
Alternatively, if you open a Terminal window and cd into the directory where your new/edited mame.csv file lives, you can run the following command to perform the copy/replacement.
cp -vf ./mame.csv /Volumes/ROMS/CFW/config/mame.csv