Replacement for WDTV box



I have a WDTV box which i have been using for many years to watch my TV programs and movies, when on holiday, on the TV in the places we stay at

I have now found that many of my files will no longer play as the WDTV cannot decode them.

Could some on please recommend an inexpensive new box that will work with the modern files, I will just be watching on the TV so I don’t need 5.1 or Dolby Vision or anything like that.

Any help will be great