Makemkv not showing all episodes on disc

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So i'm ripping supernatural season 1 blu-ray from this set https://www.amazon.co.uk/gp/product/B07FSN79TN/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

 

an on disc 1 it's only showing all the episodes in one file and 4 of the six in their own files each.

 

disc 2 just has the one big file

 

can i do anything about this or do i have to divide them manually

 

thanks for your help