MESS Core Question

The only information I could find on this was this post:

http://www.libretro.com/index.php/mamemessume-cores/

Which core is this? Aracde (MAME) or MULTI (UME 2014)? In the current MAME, MESS was unified and there is no separate MESS/UME anymore.

Can someone walk me through this?

If I want to use a game with samples (such as Q*Bert), I put the samples in what directory? (relative to the location of qbert.zip)

If I want to use a game in MESS, (such as circus.zip for a2600.zip software list, I need to put

a2600.zip in what directory?

circus.zip in what directory?

I also need the hash file a2600.xml? Where does that go? Should it be zipped?

When I choose “Load Content”, which file do I pick? a2600.zip? circus.zip?

MAME/UME/MESS cores all have the MESS part

also you can read this post http://libretro.com/forums/showthread.php?t=1361&highlight=MESS

I can run MESS android port with many driver use rom eg.supervision/GPS32/Pokemini/Super A’can,but fault with all the driver use CHD like neogeocd/cd-i

Does anyone have a copy of the mess core for android before it was combined with mame?