www.makemkv.com

I purchased a license for MakeMKV roughly 5 years ago and this tool works nearly perfectly for my use case. I wanted to say thank you to the development team for this awesome tool.

The only ongoing "bug" I have experienced for quite some time (years) is an issue related to "contention" in Linux when attempting to utilize more than 1 instance of makemkvcon with more than 1 physical optical drive.

i.e. running the following commands, in separate consoles, logged in as the same user:
xxx@xxx:~$ makemkvcon info dev:/dev/sr0 -r | grep GB
then running the following command in the seperate console:
xxx@xxx:~$ makemkvcon info dev:/dev/sr1 -r | grep GB

The resulting behavior appears to be that both drives thrash and nothing gets accomplished.

Both drives will work fine if work is queued sequentially and "parallel" tasks are not attempted.

I am not aware of any workarounds to solve this.

The GUI includes a setting to have MakeMKV prompt when there are multiple drives for which one (or "all") to have the current instance manage. I don't remember seeing anything about doing that in the command line version....

Response to an old post but I had the same contention issue last night using the 64bit version (vers ....10? App is at home). I thought it was because I had debugging enabled, and it did go away for the next set of discs, but came back for the next set. For the time that it worked I was creating MKV files, 1 was a BR and 1 was a Dvd.

thecross wrote:The resulting behavior appears to be that both drives thrash and nothing gets accomplished.
Both drives will work fine if work is queued sequentially and "parallel" tasks are not attempted.
I am not aware of any workarounds to solve this.

This shouldn't be like this. In command line mode MakeMKV should only open a requested drive and do not touch others at all (other than generic inquiry data). This is a bug, ill investigate...