(dual-layer), though compressed or trimmed versions may appear smaller, around Emulation Optimizations : For use on the Dolphin Emulator
The emulation community is actively working on HD texture packs for Brawl . Since you have the ISO, you can load these in Dolphin. Search for "Brawl HD Texture Pack v3" – it upscales character portraits, stage textures, and HUD elements to 4K, breathing new life into the 2008 classic. ntsc super smash bros brawl iso