Vidmore Player is a decent enough app, like the Apeaksoft Blu-ray Player somewhat based on VLC. Unlike VLC, there is no 64-bit version. These players are not licensed by the Blu-ray Disc Association [ wikipedia[.]org/wiki/Blu-ray_Disc_Association ] so playback of retail Blu-rays with DRM is not guaranteed, though most usually manage. They cannot play the Java-based menus and special features found on retail Blu-ray discs. At ~158MB it's Much lighter than PowerDVD Ultra [~860MB], & because it doesn't have to meet licensing requirements, it will play copies of Blu-ray discs with Cinavia protection, which in most cases can't be removed. Besides usually managing DRM, the reason I prefer these players over the similar VLC, is that VLC has an annoying tendency to resize the window to the size of the video, which I usually don't want when working with video rather than playing it back. For playback I personally prefer MPC-HC or PowerDVD Ultra because they offer display enhancements.
Installation of the Vidmore Player is a little bit nasty IMHO, adding ~1000 new registry entries as it tries to take over all sorts of video file formats -- some players give you a menu option to enable or disable that takeover, & I wish Vidmore would add that feature. After installing it in a VM I copy the program's folder to my regular copy of Windows to avoid that. You visit the URL in the GOTD readme.txt file, enter a name [just 1st name is OK] & email address to get an activation key. The keys only work for one copy of Windows, and the email is blocked for outlook[.]com email accounts. Besides the program's folder, new folders are added to ProgramData & Users\ [UserName]\ AppData\ Local\.