I'm not sure if it's been mentioned already, but sometimes, if you observe carefully, the cover art of the so-called original dvds are actually fanart drawn by fans. (who are probably unaware that someone's slapped their work on a dvd case to sell..)

Haha, I've known this (the fanart on dvd covers) for a while now, I just never cared much about it.
Then a few months back, I saw the cover of a Kuroshitsuji OVA, and went all "..I have this picture in my dA faves...wtf?"

I've been rather suspicious of Malaysian anime dvds since I bought an anime series (forgot which one lol) that had "MOETRON SUBS" in it's credits.. It's good to confirm my suspicions. Never buying anime dvds in speedy ever again..