Mame-avdvmame , Does anyone play CHD files ?

MajorDangerNine

@sirhenrythe5th Hope you are on a RPi3B+ and possibly even overclocked if you got lucky.

I believe the emulation for Carnevil will be faster, but not so fast as to be full speed.

Area 51 might run full speed.

In both cases, you might also improve the emulation speed by reducing the resolution by using the Runcommand. https://retropie.org.uk/docs/Runcommand/

shavecat

Did not get it to work fine. :
its always says in the logfile (*.chd not found)
and its in a folder with the roms same name and so.
If someone have a video or detail by detail how do i make it work ...
maybe then :)

BJRetro

@shavecat did you check the image_dir line on the advmame 1.4 .rc file? Does it match the ROMs folder?

shavecat

@BJRetro

yep i put the chd in a folder there . also try with out the folder and so on .
maybe that is progress ?

sirhenrythe5th

@shavecat
The CHD-File does not seem to match your MAME-Version.
They also evolve with the MAME-Versions.
To prevent permanent downloading of tons of gigabytes every time a tool called "CHDMan" was created to simply update your CHD-Images to the newest state.

I dont know if your CHD of Killer Instinct is younger or older than that which is required by your MAME-Version.
I am not sure if downgrading is possible, i only upgraded my CHDs.

shavecat

@sirhenrythe5th
confused :\\

sirhenrythe5th

@shavecat sorry, english is not my native language.
I try to explain it with less words.
You know that i.e. Roms for MAME 0.32beta4 wont run on MAME 0.190.
Well, and thats the same with the Harddisk based Arcade-Games and their CHD-Files for MAME.
You may have the Killer Instinct Image that was meant for MAME 0.61....and this does not run on your MAME 0.78 :/

mitu

@sirhenrythe5th CHD can be packed with different chdman versions - older version were CHD v3, new ones are CHD v5. That's what the error message says - I think.
@shavecat look at the .chd file by running

chdman info -i file.chd

and see which CHD version is the file.

You can find chdman in any recent MAME distribution (PC/Windows) from https://www.mamedev.org.

sirhenrythe5th

@mitu thanks for this proper information 👍

I can remember that i used chdman several times to fix my chds to newer releases of MAME.
I had chds since they appeared in MAME the first time.
So i guess there were also versions like 3.1, 3.2, and so on?
I really had to use the tool quite often, at least in 2006 and 2007, and not only once to update from 3.0 to 5.0 😐

shavecat

@mitu
thanks a lot
will give it a try