Bidi | 01.mkv.mp4

The naming convention provides several clues about its origin and nature:

A manual renaming error where the new extension was added without removing the old one. Bidi 01.mkv.mp4

A file originally in Matroska ( .mkv ) format that was converted to or wrapped in an MPEG-4 ( .mp4 ) container, with the original extension left in the name for tracking. The naming convention provides several clues about its