zero byte video file
zero byte video file: what it usually means
Zero byte video file searches are emotionally charged because the filename exists but the footage appears gone. The key distinction is whether the file itself is empty or whether the storage device has lost directory information while raw data may still exist elsewhere.
If the file has real size, there may still be recoverable frames and audio inside. The safest first move is to leave the original untouched and create a separate repaired preview.
Do not trim, re-export, repeatedly convert, or overwrite the damaged file. If you need to experiment, work from a copy and keep the original exactly as it is.