SNES Roms extracted

When i extract the SNES roms, i get a bunch of SMC files, which one is the game?  which ones should i put in for SNEmulDS?

You should just get the ones with no image tags aside from (U), (E) or (J) as those are the certified good dumps.For some japanese ROMs that has a known translation patch you obviously need to select the ones with the latest patch version on it.

Ok, and is the emulator supposed to have the scratchy sound?

what game are you playing?

https://www.romulation.org/forum/index.php?topic=1359.0 <- tags explained.

Always use clean copy for SnemulDS etc. Otherwise it'll fuck up.