Defective Blu-ray disk

[DVDmon]

Is there any issue with Blu-ray DVD’s causing them to stop working properly after a short time? The first time this happened is with “Disney Tangled” then “Despicable Me 2” and now “E.T. the Extra-Terrestrial”. The first time the DVD is played it worked just fine, then after a few plays the DVD develops areas where it stops and produces video distortion and then jumps to the next chapter. There are no scratches or visible damage of any kind to the DVD disk. Disney had me send the DVD back to them for testing and they noticed it doing the same thing using their equipment, so they sent me a replacement and now it is working just fine. Universal also sent me a replacement for “Despicable Me 2” without having to send back the defective DVD and now it is also working just fine, but they seem to be hesitating even refusing to contact me to replace “E.T. the Extra-Terrestrial”. Do these companies get their DVD copies mass produced in China or Mexico using inferior materials? I play a lot of DVDs and Blu-ray DVDs and they all work just fine in my Sony player, except for these 3 DVDs so far. Do you think I should replace my Blu-ray DVD player even though it played the DVD just fine when the DVD was new or should I just take the Blu-ray disk back to the retailer?