Set your software player to or "Passthrough" mode.
Here is a deep dive into why this specific 5.1 surround sound version of the Greatest Hits is so coveted and what you need to know about the format. What is a DTS Audio 5.1 CD?
If you are interested in the topic behind that filename, I can provide a well-researched, legitimate essay on one of the following subjects:
When you extract the files from the .rar archive and play them through a compatible DTS system, the difference is immediate and startling. Queen’s production was always grand, theatrical, and layered. The 5.1 mix exploits this brilliantly.
The audio is encoded using Digital Theater Systems (DTS) technology, requiring a compatible DVD/Blu-ray player or an AV receiver with a DTS decoder to play properly. If played on a standard CD player, it will only emit static.