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[Tbird]

Okay so firstly I'm really new to emulation and have started my first project with a Pi3 running Retropie.

My dilemma like many is MAME, I got my head round some stuff and was hoping you could all help me.

I have a copy of clrmamepro and have downloaded a full romset 1.38 I think , apprently it includes parents, bios etc. So heres my questions

1. I downloaded all the roms in 13 parts (Ie 13 folders) before I run the software do i need to slam everything into one folder bios, parents etc

2. It still all makes no sense but if I transfer it all to .78 with some amazing magic it all works.

3. If I Have a romset all updated for lrmame2003 if I want to for example play Simpsons will everything I need including parents and bios etc be in one file because if I search that now they are spread across all 13 folders , I'm confused wil clrmamepro organise it for me

I'm just so confused its MAME its getting very frustrating and every guide assumes your a genius. I didn't even know what Linux was till yesterday

Any help or budding mentor out there who wants to help a old guy get back to gaming again I would appreciate it

[Roman]

Why stick with an old version of MAME?
The current version is .173 (and in will be updated to .174 shortly).

The number of rompaths you're using is personal taste. Some users use only one, some split it up by systems etc...

First rule: cmpro needs a database, it takes it either from a MAME executable directly (prefered method) or a datfile. It will cleanup your sets based on this database. You should use the MAME version you're using for playing of course (still, I'd prefer the latest MAME release).

If you're sure that your sets are in a complete mess and spread over dozens of folders you can use the rebuilder to get everything valid from a source to a destination. The rebuilder is file based, not set based. It scans the source folder(s) file by file, checks it against the database (hash match) and adds each found match with the correct name in the destination.
Source is your garbage, destination is a clean rompath.

Afterwards you can use the scanner to check what is missing. Generally, the scanner should be the module to use, the rebuilder is more an adder or a transformator..