You can verify your file by using free hash-checking utilities like HashMyFiles or built-in command-line tools in Windows PowerShell ( Get-FileHash -Algorithm MD5 [FilePath] ). Optimizing Dolphin Emulator for High-Quality Playback
If you watch a world record speedrun of Skyward Sword (Any% category), they are almost certainly using the NTSC-U 1.00 ISO.
Once you have high-quality ISO:
High-quality playback considerations
Nintendo eventually released a specific "Save Data Update Channel" on the Wii Shop Channel to repair corrupted files, and later disc pressings (1.01 versions) patched this sequence breaking issue entirely. For speedrunners, glitch hunters, and digital historians, having the untouched 1.00 ISO is essential precisely because it preserves these original coding quirks and mechanical behaviors. The Elements of a "High-Quality" ISO
While version 1.00 contains this bug, many players prefer it for modding because the address offsets for game data are well-documented compared to the patched versions. Performance and Playability
The 2021 HD remaster for the Switch makes extensive changes to the original game, creating a very different experience: