series.ini: impossible duplicate ROMs

[ghost]

The file series.ini has impossible duplicate ROMs. I use the word impossible since I strongly believe a game can only exist in ONE serie. (unless you proof I'm wrong)

The duplicates list is attached

An excerpt of the file:

[Cruis'n USA]
crusnexo
crusnexo
crusnexoa
crusnexoa
crusnexoaa
crusnexob
crusnexob
crusnexoc
crusnexoc
crusnexod
crusnusa
crusnusa11
crusnusa20
crusnusa21
crusnusa40
crusnusa41
crusnusa44
crusnwld
crusnwld
crusnwld13
crusnwld13
crusnwld17
crusnwld17
crusnwld19
crusnwld19
crusnwld20
crusnwld20
crusnwld23
crusnwld23
crusnwld24
crusnwld24

You can see many games are just written twice inside the same filter. Possible some games exist in more then one serie in the file, but I didn't check manually.

You can find all duplicates in the list reported by my database.

duplicates.zip

[AntoPISA]

Here actually some duplicate items were there; I corrected them. Regarding these:

20pacgal
20pacgalr0
20pacgalr1
20pacgalr2
20pacgalr3
20pacgalr4
cmtetris
cmtetrisa
cmtetrisb
cmtetrisc
cmtetrisd
invqix
popeyeman

the machines listed if they are run have two games, which is why they come in multiple "series."

[ghost]

I still don't understand why the "[Cruis'n USA]" filter has some games twice...

"Series" means the same type of games grouped together (as you can see in the file history.xml)
crusnwld13 is one game (Cruis'n World v1.3), crusnwld17 (Cruis'n World v1.7) is one game, ...
Listing them twice is useless. You write the same game TWICE in one serie.

I don't know why you use a very weird and not usable definition of series...

Cruis'n World (c) 1996 Midway Mfg. Co., in history.xml's Series:

• SERIES -

1. Cruis'n USA (1994)
2. Cruis'n World (1996)
3. Cruis'n Exotica (2000)
4. Cruis'n Velocity (2001, Nintendo GameBoy Advance)
5. Cruis'n (2007, Nintendo Wii)

Each version of Cruis'n World should be listed once in each series "Cruis'n World", each version of Cruis'n USA should be listed once in each series "Cruis'n USA", ...