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Mega Drive / Genesis MSU - error launching

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Mega Drive / Genesis MSU - error launching Empty Mega Drive / Genesis MSU - error launching

Post by criciuma 17/08/23, 02:20 am

Hello all,
Trying to figure out how to make msu files work for the Mega Drive.
1 - Retrobat recognizes the games in the .bin format, however, upon trying got start any game with either emulator I get an error "an error occurred: the emulator exited unexpectedly".
2 - Retrobat does not see the .chd games or .md files.

If I launch Retroarch instead, I can launch any game .md or .chd

Thank you!
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Post by tartifless 17/08/23, 04:46 pm

Hello,
.md files are working fine


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Post by criciuma 17/08/23, 11:56 pm

A little more digging:

1 - .CHD don't get recognized, but wiki says they don't anyway. They do work via retroarch.
2 - MD+ games that contain these 3 file formats: .cue, .md and .wav, do not get recognized. They do work via retroarch.
3 - MSU Games that contain these 3 file formats: with .bin, .cue and .md get recognized, however, gamelist.xml shows the same game twice for every game, under the same game id, one time with .bin and the second time with .md. Trying to scrape the game in Retrobat, shows the .bin extension only (games don't show up twice).
(3) These are the ones that fail when launching.

gamelist.xml Example:
<game id="001">
<path>game1.bin</path>
<name>game1</name>
blablabla
</game>
<game id="001">
<path>game1.md</path>
<name>game1</name>
blablabla same info as above
</game>
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Post by tartifless 18/08/23, 12:04 am

Hello,

Are you sure you did not mess up because your case 2 gets recognized by me !

.md is in the list of extensions for megadrive msu ==> maybe you removed it.


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Post by criciuma 18/08/23, 12:25 am

Are you asking if I messed up my post? If so, no, I just tested all prior to posting.
Sure, something must be messed up somewhere.
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Post by tartifless 18/08/23, 12:29 am

You are saying .md files are not recognized in RetroBat ==> did you by any chance hide this extension or removed it from es_systems ?


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Post by criciuma 18/08/23, 12:47 am

You ended up leading me in the right direction.
I didn't know I could do this: Remove extensions per system, so, I removed .bin, and now it launches the .md instead, so it works!
Thanks!
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Post by criciuma 18/08/23, 12:48 am

No. it had both in the gamelist file. Disabling .bin did the trick and showed .md.
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Post by Lorenzolamas 18/08/23, 08:05 pm

criciuma wrote:No. it had both in the gamelist file. Disabling .bin did the trick and showed .md.


removing one extension does not make another one work. wtf??
It has nothing to do.
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Post by criciuma 22/08/23, 11:49 pm

Well, it works this way, no duplicates and it launches perfectly.
Disabling the .bin means that it launches .md instead of .bin in my case, which is why it was not working.
Every game was showing up 2 times on gamelist.xml, and .bin came first, which I guess is why it was the one being shown/launched.
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Post by Lorenzolamas 23/08/23, 09:57 pm

If it appears twice, you have 2 files, one in .bin and one in .md on your rom folder.
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Post by criciuma 24/08/23, 01:10 am

Mega Drive / Genesis MSU - error launching 2022_CaptainObvious_3x2
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Post by Lorenzolamas 24/08/23, 06:08 pm

Why you don't use .zip files ?
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Post by criciuma 24/08/23, 11:55 pm

I tried zipping 2 games, 2 different ways. Both have 3 files.
1 - the 3 game files in a zip and 2 - the 3 games files inside a folder in a zip. Retrobat sees the zip file for both, upon launch, both give me the same "exited unexpectedly" error.
Is it because it unzips the file and tried to use the .bin to launch the games?
Each game has a .md, .bin and .cue file.
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Post by Lorenzolamas 25/08/23, 12:42 pm

Which roms?

Retrobat is officially compatible with Megadrive MSUs, not MSU+.
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