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ScummVM 2.0.0 - Error: Adding PCM ROM failed
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Digitoxin



Joined: 07 Aug 2012
Posts: 9
ScummVM 2.0.0 - Error: Adding PCM ROM failed 

When using ScummVM 2.0.0 with the MT-32 Emulator, I get the following error message:

"Error: Adding PCM ROM failed. Check that your PCM ROM is valid."

Everything works fine if I go back to the previous version of ScummVM. I am using the exact same folder structure and layout and configuration with both versions of ScummVM. Nothing has changed except for the version of ScummVM I am using.

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Post Tue Dec 19, 2017 6:16 am 
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digitall
ScummVM Developer


Joined: 02 Aug 2012
Posts: 935
 

Odd. Are your ROM files named as follows and have the same MD5sums?
abe0982e4f662f881affa7d8a932c739 MT32_CONTROL.ROM
89e42e386e82e0cacb4a2704a03706ca MT32_PCM.ROM

Can you also indicate which platform i.e. Windows, OSX, Linux that you are using and whether you got the new v2.0.0 build from our downloads page?

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Post Tue Dec 19, 2017 9:19 pm 
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Digitoxin



Joined: 07 Aug 2012
Posts: 9
 

Turns out one of the ROM files was corrupt. Have no idea why the previous version of ScummVM wasn't picking up on the incorrect checksum though.

quote:
Originally posted by digitall
Odd. Are your ROM files named as follows and have the same MD5sums?
abe0982e4f662f881affa7d8a932c739 MT32_CONTROL.ROM
89e42e386e82e0cacb4a2704a03706ca MT32_PCM.ROM

Can you also indicate which platform i.e. Windows, OSX, Linux that you are using and whether you got the new v2.0.0 build from our downloads page?

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Post Wed Dec 20, 2017 12:14 am 
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digitall
ScummVM Developer


Joined: 02 Aug 2012
Posts: 935
 

Probably as the older version of Munt in-built did less validation.

If you need to redump your MT-32 EPROM chips, then there is a hardware design here to do this which I used:
https://github.com/digitall/eprom_reader

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Post Thu Dec 21, 2017 2:25 am 
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