Okay, I followed this guide: https://forum.videohelp.com/viewtopic.php?t=219535
and I got to the last stage where I update the IFO file.
First of all, when i select a IFO file from the i have 6IFO files to choose from (VTS_01_0, VTS_02_0 and so on until VTS_06_0) and also when I choose one of them i get this error:



Please help