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The two types of subtitle were made by different people at different times. If the graphical subtitles are available then they are generally sufficient and you don't need the CC tracks. However, CC tracks do have one advantage: they are text-based and the player or display program has more flexibil...

It's not necessary to select ANY subtitle type, but CC's are often ones you don't need... but are automatically selected when doing DVDs. MOST of the time, it's not a problem. You can ignore them if you don't want them. But sometimes MakeMKV will spend a lot of time trying to find CC-type titles th...

Is it necessary for me to select the last subtitle entry here?

Subtitles CC Text English (Lossy conversion)
Is basically just going to create another copy of what already exists in the regular English subtitle selection, or is it somehow different?