"Backup" is grayed out

[chip chanko]

I'm probably missing something easy but why can I save titles but the Backup button is grayed out? I'm trying to work around errors on some discs. Running MakeMKV on Tahoe.

[Coopervid]

I'm probably missing something easy but why can I save titles but the Backup button is grayed out? I'm trying to work around errors on some discs. Running MakeMKV on Tahoe.

Backup only works if you DO NOT click the big optical drive icon.

[chip chanko]

Ooooh thank you!