www.makemkv.com

I'm running this command from a dos batch file. What am I doing wrong. I have tried 3 different output folders and get the same error.
%makemkvcon64% backup --decrypt --cache=16 --noscan -r --progress=-same disc:0 "G:\New folder"
MSG:1005,0,1,"MakeMKV v1.17.5 win(x64-release) started","%1 started ...

I tried your suggestion with this:
"C:\Program Files (x86)\MakeMKV\makemkvcon64.exe" mkv disc:0 1 "G:\MakeMkv"
And I got this with no movie ripped:
MakeMKV v1.17.5 win(x64-release) started
Using direct disc access mode
Title #1 was added (15 cell(s), 1:12:49)
Operation successfully completed ...

Below is the output from a Handbrake ISO scan using a " --min-duration 1800" (30 minutes).
Using makemkvcon64 "--minlength=1800" Title #5 becomes <title id> 0 and Title #12 becomes <title id> 1.
If I use makemkvcon64 "--minlength=5,751" (20 seconds less than Feature length 1:36:11) Title #12 becomes ...

I am new to this forum. How do I post a file in a codebox?

Just to elaborate what I am doing. I'm on Windows working with a DOS Batch file. I want to find the Main Title and rip it. I don't know how to do that with makemkvcon64. So I use Handbrake cli and scan the ISO to a file. I parse the scanned file to find the Main Title index number. I tried using the ...

I can confirm that <title id> does not correspond to the listed Title #number. It appears that the <title id> is related to titles added that meet the minimum length specified,
such as --minlength=1600 in this example. So from the example below Title #5 becomes <title id> 0 and Title #12 becomes ...