A user may have attempted to convert a Matroska (.mkv) file to an MPEG-4 (.mp4) file but manually typed the new extension instead of letting a converter tool handle it.

: Software packages used to handle text that flows in multiple directions (like Arabic and English).

"Bidi 02" likely refers to the content's title or series. In technical contexts, "BiDi" can stand for Bidirectional , often used in reference to:

Most modern media players, such as Kodi or VLC, can handle both MKV and MP4 files, though a double extension might cause playback errors in some software. bidi package - All Versions - Pub.dev

This typically indicates one of two scenarios:

: A technology for high-speed fiber connectivity.

A flexible container that can hold unlimited video, audio, and subtitle tracks in one file.

Files with double extensions are sometimes used to hide the true nature of a file. For example, a script might be named video.mp4.exe to trick users into running it. You should verify the source of this file before opening it. Technical Specifications (General) Based on common standards for these formats: