I own a Mac OSX 10.6.3 with MAME OSX 135. I love to play classic arcade games in my spare time.

I downloaded Killer Instinct 1 & 2 for this emulator but it appears I have the wrong chd files. I heard that they would have to be updated by a program called chdman but I do not know how to do it from my mac. I heard MacMAME has a chdman that opens up a terminal.

The chd files I have run both games at 25% speed of 100 (very slow). After loading Killer Instinct v1.5 I check the log window from the menu and it reads:


kinst.chd WRONG CHECKSUMS:
EXPECTED: SHA1(81d833236e994528d1482979261401b198d1ca53)
FOUND: SHA1(a37a2c5e52ea936a715210d237874dd573bb002f)
WARNING: the game might not run correctly.

I used to play both games no problem when I had MAME OSX 124 in my Tiger Mac 10.4 When I test both games in MAME OSX 124 from my current snow leopard, I get a message saying "unsupported chd."

After downloading chd files from multiple sources I get the same message...

Would anyone know how to use the chdman for Macmame so I can update the chd files? Or any other type of possible solution that you could help me with?

Thanks!

First and foremost, I will suggest that you take a look at switching to SDLMAME (now part of baseline MAME), with an external front end like MAME_Tunes. It's easy to set up, and you will have more control over the update process.

That having been said, there's a good possibility you simply need to update your existing CHD files.

Here are some basic instructions for doing so... If you continue to have problems, we'll try to help.

=====
1 Make a new empty folder (ROM Repair)

2 Copy the chdman utility from SDLMAME 0.138 or later to ROM Repair

3 Open the Terminal application

4 In Terminal, type 'cd ' (that's cd and a space), and drag the ROM Repair folder to the Terminal window. Hit 'Return'

5 Move a CHD file (with it's subfolder) to ROM Repair

6 Drag the chdman utility to the Terminal window, and type'-update[space]

7 Drag the CHD file (not the subfolder) to the Terminal window

8 copy and paste the CHD file name on the same line, making sure a space exists between the first and second occurrence of the file names

9 Hit 'Return'. chdman should return a new CHD file in the ROM Repair folder outside of the original subfolder (which will still contain the original CHD File)

10 Rename the original subdirectory (just add a '-' to the directory name). Create a new folder with the proper name of the ROM Set to which the CHD file belongs, and move the CHD file to this folder. Move the new CHD file (in it's subdirectory) to your ROMs directory, and audit the file, if desired. If everything checks out okay, throw away the original CHD file and subfolder

11 repeat steps 5-10 as needed

Note - Each file will take a while to process (especially the LD CHDs) Be patient...

The reason your games run so slow is because of MAME OS X. I'd suggest moving to SDLMAME until someone releases a MAME OS X with the dynarec stuff fixed (or use SDLMAME from now on, as it is indeed superior to MAME OS X)

I appreciate your recommendations and I tried following the steps you provided.

Unfortunately the result was the same. There was one time when something was seemingly going on but I never received any new chd file...Below is the actual text displayed when I opened up a new Shell from the Terminal:

__________________________________________________________________________________

Last login: Wed Jun 9 16:47:21 on ttys000
Simon-Guglielmellis-iMac:~ simonguglielmelli$ cd /Users/simonguglielmelli/Downloads/sdlmame0138u1-x86_64/ROM\ Repair
Simon-Guglielmellis-iMac:ROM Repair simonguglielmelli$ /Users/simonguglielmelli/Downloads/sdlmame0138u1-x86_64/ROM\ Repair/chdman update /Users/simonguglielmelli/Downloads/sdlmame0138u1-x86_64/ROM\ Repair/kinst/kinst.chd kinst.chd
dyld: Library not loaded: @executable_path/../Frameworks/SDL.framework/Versions/A/SDL
Referenced from: /Users/simonguglielmelli/Downloads/sdlmame0138u1-x86_64/ROM Repair/chdman
Reason: image not found
Trace/BPT trap
Simon-Guglielmellis-iMac:ROM Repair simonguglielmelli$

__________________________________________________________________________________

I opened up a new shell while making the "ROM Repair" folder and copying the "chdman" icon. For some reason I could not type anything on the first shell after the "Process complete" text.

In the new shell I typed "cd" then space. I then dragged the "ROM Repair" folder into the shell and hit "Return." (Keeping in mind I copied the chdman into the ROM Repair folder).

As for the chd file, I dragged it inside the kinst folder and moved it inside ROM Repair. Then I relocated the chdman icon from the Rom Repair into the shell and typed "update" (then space).

I then dragged the chd file and copied the same name onto the same line. I attempted this process with the chd file inside and outside the kinst folder-that was inside the ROM Repair...

I am not sure if I missed any steps but this was like the 30th attempt.

I am considering of using sdlmame instead (hoping there is no need to update any chd files for some time). But it looks to be a lot of work and I may have to download and install additional files (including an xcode that requires that I be a mac developer)...

When I still had Tiger and OSX124 the game ran perfectly. Now OSX135 has already bought up many complications...However I am not stopping here, even if I have to wait patiently for future releases.

Again thanks for your help but I am back to square one.

I think I see your problems (at least two)...

1) It looks like you need to install the SDL framework (very easy to do, needed by (SDL)MAME, should you decide to try it, and free. Check out the SDLMAME forum, and look at the 'New build instructions for SDLMAME on Mac OS X' thread).

2) Please note that the command needed by chdman in the Terminal is '-update' (note the '-')

As for (SDL)MAME being a lot of work, the things to bear in mind are -

- The largest amount of work involved is the one time setup of the SDL framework, and downloading/installing Xcode. After this, it's really just a matter of typing a few lines in the Terminal, and waiting a bit.

- Signing up as a Mac developer costs nothing, and does not obligate you in any way to develop software. It does allow you access to the developer community (should you decide to develop software), and give you access to developer tools (like Xcode, which Apple used to include with the Mac OS X retail packages, and new CPUs).

- If you really don't want to go to the trouble of compiling yourself, pre built binaries are available at http://sdlmame.parodius.com/
(But honestly, compiling it yourself gives you a sense of accomplishment... )

AFAIK Xcode still comes on the OS install discs - I'm pretty sure it was on my retail copy of 10.6 anyway.

It does indeed... My mistake...

It's on the install disk in the 'Optional installs' folder.

Hey guys sorry i did not replied sooner. Thanks for your quick response though. I'm going to use sdlmame instead, see how it works...

Hey guys it's me again. I got the Xcode tool from the retail disc, and ran through a long and painful process of installing files needed to run sdlmame. When I chose to audit kinst and all the files from the MamePlus app. the issue was exactly a recurring mismatch like before...

I may have to put this quest on an intermission. However thanks for providing all the options while attempting to assist me. I still want to look for other ways to use kinst, like on the mac cross-over (running window apps on mac). The other rumor is Killer Instinct being available for live arcade on X-BOX 360. Would that be true? I also saw the game running on a regular X-BOX console on youtube.

I have one more huge favor to ask: Would it be a crime if someone could update a kinst.chd file compatible for MAME OSX 135? I can use a free "yousendit" account since the file does not exceed 96MB. The other option is to wait another MAME OSX release with the issue fixed. At least that's my opinion.

If you simply Google for the CHD chances are good the version you find will be correct for current MAME (which is 0.138u1).

KI is not available for the Xbox or Xbox360. The YouTube video was likely an illegal version of MAME for "jailbroken" Xboxes.