[INFO] properties of a video

[Selur]

The difference is:
Unless you use 'raw' as output container, the output always has a container, but the input doesn't always has to:

• have the same number of streams as your last input,
  
• have the same order of streams as your last input,
  
• have the same characteristics for each stream as your last input.
  

Keeping input specific data doesn't make sense to me.
You want something like: always tag the Xth audio stream with language Y, which is something Hybrid doesn't support.
-> This won't change, if you need it use another tool.

Cu Selur