The um4 file extension is related to some types of 4K Smart TVs developed by Samsung Company.
The um4 file stores video in 4K resolution recorded by Samsung Smart TV television.
How to open:
Use compatible tools to work with *.s4ud files.
How to convert:
As far as we know, this .s4ud file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.