u/BazExcel

Unfortunately this is from an Ebay listing so these are the only photos I have.

Every single time I see a release with both types of disc, they ALWAYS have a blu ray case, rather than a larger DVD case, at least until I got this. Are there any other like this?

I just ordered this from Amazon using a gift card of mine, but once it arrived I found myself really disappointed because it doesn't have the slipcase. Is this a common issue? I'm thinking about sending it back because of how disappointed this makes me.

My parents just bought me this DVD, and while I'd like to watch it, I haven't seen either Dragon Ball or DBZ. Is it entirely necessary to watch the first series to see this one?