Is there really a way to unlock password protected RAR (WinRar files) aside from having the password?

I've downloaded "Showtime Boxing - Rios vs. Antillon". After unpacking another RAR file was extracted together with an HTML bookmark for the password. I tried accessing the bookmark, but it doesn't work. I went back to the source site and read some comments thinking they would share for the password but unluckily they also have the same problem.

I tried reading articles and forums and tried their suggestion with regards to unlocking RAR but nothing worked.

Thanks...