So I'm currently trying to remove the background music from the original Super Mario Bros for use with FCEUX Emulator. But, I won't be using the PC to record the footage, I'll be using the NES Emulator for Wii, so I'll have to be able to save the ROM without the Music too. I've tried using the built in HEX Editor to visually check which values 'bop' in time with the music and different pitches of notes and frozen each one that appears to be related to music, it's kind of successful actually! Despite that, it's still not perfect. The background music isn't fully gone, I'm not sure of every value that needs changing to nothing. The game tends to just freeze after freezing a few of the Values. So, I'm wondering if anyone can help me out with this? It's basically just so that I can record gameplay footage but keep the sound effects included as I'll have other background music in place! A modified ROM maybe? If I could mod it myself then I'd be happy to do so with some guidance. Thanks for any help guys! UPDATE! Managed to get rid of background music using a GameGenie Cheat supplied in a comment below by VinsCool. Although this isn't a permanent method, FCEUX seems to automatically save the Cheat code into the .CHT file for the game once it's been put into the Cheat list. That .CHT file can then be used in other Emulators or other Ports of FCEUX which don't have GameGenie Capabilities (Like the Wii Version, FCEUGX that I'm using) If you'd like the code VinsCool supplied out of the huge list he supplied then here ya go!