I bought it used, I can't speak for the case, but this DVD is not shipping with the case. Just the disc, artwork, and any inserts. The artwork is original.
It will be protected. I have some envelopes that I ordered, not sure if they'll be here in time, but I've shipped a lot of discs like this and know how to protect them.
The last time we played the disc, there were no skips on it.