

Like the OP I also have experienced this when a disk can't be read can create conditions where MakeMKV hangs, and also specifically an issue with DVD's that won't mount causing the same behavior. I've been experiencing an issue that may be related.

I'm hesitant to try any more of my DVD collection as most result in a hard down of the server. I am on the latest build of the container. This seems to be more prevalent with DVDs, but has happened on bluray and 4K disks as well. Killing the container via command line has also failed.

If the disk does start ripping but gets stuck on a scratch the time to complete will climb forever and trying to stop the container will leave it in a hung state. If the disk errors saying failed to open, the unmount/eject will never complete and trying to stop the container will leave it in a hung state. A soft shutdown of the server has to wait for docker containers to stop, which in this state makemkv never does so I have to hard down the server. Once trying to stop the container the url is unresponsive, but unraid still shows as started. If the disk can't be read the application will keep trying to complete the action (the time to finish during a rip will keep climbing) and trying to stop the container in unraid fails. When using Unraid I've experienced multiple scenarios where a scratched disk causes the container to hang, but mainly during a rip or unmount/eject.
