I/O error while reading or writing the file

<img width="1080" height="2340" alt="Image" src="https://github.com/user-attachments/assets/69b0a16f-2f26-45d4-a3bf-e08db9280797" />

Has been trying since yesterday to convert nsz file but this thing just showed up. The file wasn't converting and idk why
Would be helpful to have a progress bar in the app and to know how much time it'll take to convert 