I have been using JRiver Media Center 23 for Windows since it was released and having no problem with it. However, it no longer will play any commercially released DVD movie. All MC will do is show the same few previews over and over. Pressing the DVD menu shows the option to play the movie, but clicking on that option only shows the same previews once again.
Inserting any commercially released DVD concert plays the concert enjoyably normally with all of my settings as saved, so I know MC itself can work.
All of the movie DVDs that I have tried to play have previously played normally using MC, so I know the discs are not at fault.
All of the DVDs have been previously played with MC using the same Pioneer DVD CD Blu-Ray disc player which currently plays CDs flawlessly using another audio program, so I know that the disc player is not at fault.
I have used DVDFab Passkey 9 with MC to play Blu-Ray discs, all of which played as they should. However my DVDFab Passkey 9 license has expired. Is that preventing DVDs from playing? Is there a registry key I need to change to allow MC to play movie DVDs again?