@jay-lakin Once you have the reference set downloaded, you should look carefully to see what form that download is in. Is it an archive? If so, it will need extracting somewhere. You can then copy the reference set to the arcade folder. Samples are treated differently as linked and may not even come with the reference set. My set was an archive which presented me with three folders once it was unzipped. They were docs, roms and samples. The docs folder was very useful because it included a games list. I recommend transferring just one game from this set to verify that you have followed this process. Open up the roms folder and choose something like invaders.zip, transfer it using your preferred method then launch it. I use winscp for this. It should launch but without sound. You can then get the invaders sample zip from somewhere and locate it in the correct folder as linked. Now when you launch, it will have sound. You can then transfer other games of interest or all of the games. You have to make sure that you have read all of the guidance in advance. You must check that you are launching the rom with the correct emulator selected from the run command and that you do actually have 0.78 roms and that everything remains zipped after unpacking the original 0.78 set download.
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