There is an error at 11.58. That compound has 5 carbon atoms and would be named pentanal
I goofed with this one - it should be 1-tert-butyl-3,3-dimethylcylcopentane
There is often more than one word to describe a functional group. In the video I use "benzene" or "phenyl" when the paper says "aromatic ring." All three are correct.