[Mame CHD's]

On 9/24/2018 at 5:23 PM, dragon57 said:

I can tell you how I solve for my missing CHD files. I use the build of MAME called Arcade64. It has a nice gui with different categories, a search function, and finally you can click on any game and do a single audit which will tell you every file that is required to run it. JoJo is like many MAME games. There are versions that do not need the CHDs, and some that do. You can figure out which ones buy using the steps I outlines.

Thank you. Arcade64 helped me sort and audit all my MAME files.

[Mame CHD's]

Hi,  I had two questions about CHD files since I'm new to using CHDs myself and didn't want to start a new thread.

For games that have both a working ROM file and CHD file do I need both files? 

For an example, "JoJo's Bizarre Adventure" has both a ROM file "jojoba.zip" and CHD files "cap-jjm-0.chd, cap-jjm-1.chd". I can run the game ROM with out the CHDs.

The second one is, do I need to have all the different CHD versions of a game?

Another example is, Soul Calibur 2 has two CHD files "sc21-dvd0b.chd" and "sc21-dvd0d.chd". I'm assuming I only need one of these files and not both.

I just want to have the files I need to run a game and to save some space, because CHDs can be rather large.