If you see a "File Corrupt" error or get audio but no video:
Right-click the file, go to Properties (Windows) or Get Info (Mac). Look at the "Type of file" or "Kind." espl1080.mkv.mp4
The most reliable option. It will play the file regardless of whether the extension is correct. If you see a "File Corrupt" error or
Double extensions like .mkv.mp4 can confuse some media players. You should decide which format the file actually is. espl1080.mkv.mp4
A lightweight alternative for Windows users. IINA: A modern, sleek player for macOS users. 3. Troubleshooting Playback Issues