ikariwths
Posts: 1
Joined: Sun Feb 27, 2022 2:16 pm

MAME and CHD

Good morning everyone, I have downloaded the full set 0.240 non merged for mame, I can also download the chd which however I see that they are 500+giga.Are they different games? Does it make sense to download all these files?More I ask because I see that chd is for merged full sets while I have non merged.
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Tafoid
Posts: 351
Joined: Thu Nov 06, 2014 12:50 pm
Location: USA
Contact: Website

Re: MAME and CHD

ikariwths wrote: Mon Feb 28, 2022 7:14 am Good morning everyone, I have downloaded the full set 0.240 non merged for mame, I can also download the chd which however I see that they are 500+giga.Are they different games? Does it make sense to download all these files?More I ask because I see that chd is for merged full sets while I have non merged.

Most games which require CHDs also have BIOS/MACHINE rom requirements.
CHDs really cannot be merged, although in some instances different versions of a machine which has different physical roms share the same CHD between them. Can't help you much beyond that.

You can read about ROMS and CHDs at https://docs.mamedev.org/usingmame/aboutromsets.html

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