It looks like you're referencing a specific file or release group: hsoda030engsub and a conversion note 021021 min best.
ffprobe -i hsoda030engsub.mkv
hsoda030: This is likely a unique identification code. In the world of media distribution, specific studios or platforms assign alphanumeric codes (often called "product IDs") to their releases to differentiate them from thousands of other titles. hsoda030engsub convert021021 min best
What is hsoda030engsub convert021021 min best? It looks like you're referencing a specific file
I recommend HandBrake for beginners or FFmpeg for advanced users. hsoda030 : This is likely a unique identification code