recently i tried watching season 5 (region 1) on dvd, but both sides discs 2, & 3 didn't work at all in my pc or dvd players which are fairly new. Disc 1 worked but it couldn't get past episode 1 side A or on Side B. Is this a know issue with Season 5 or did i just get a defective copy? Please help me bcause i don't wanna buy another copy and have it be defective too. Also my dvd player had so much trouble reading disc 1 side A & B it actually created scratches