: Ensure your project.json and all media assets (images, sounds) are at the root level of the ZIP file. Do not place them inside a subfolder.
Select all the individual files and folders inside your project directory. zip to sb3 extra quality
Use 16-bit WAV files or high-bitrate MP3s. Scratch will compress these, but starting with a higher-quality source yields a better final output. 2. Organizing the File Structure : Ensure your project
The phrase "extra quality" also applies to the assets inside your SB3. When converting ZIP to SB3, you can upgrade the project by replacing assets with higher-fidelity versions before zipping. zip to sb3 extra quality