Dsc_3783.mkv -

: If you can't see the file size or length in File Explorer, Windows may lack the proper thumbnail and metadata handlers. Installing a tool like Icaros or VLC Media Player often fixes this.

If you need a detailed report on the file's resolution, frame rate, or codecs, the best tool is . Download and open MediaInfo . Drag and drop DSC_3783.mkv into the application. DSC_3783.mkv

: If the file won't play, you can try repairing it using VLC's "Always Fix" feature or by running a CHKDSK scan on the drive where it's stored. : If you can't see the file size