I have been using memorex 4x disks for some time without any problems at all, but i just bought 200 disks of them from amazon.com and they are total junk. i have always bought the printables, but these 200 are a little different , they are now printable all the way to the hub, they never use to be. anyways they are mcc 's (which is supposable good) and although they are packaged as 4x, they all read as 8x. i am burning coasters 3 out of 4 disks. I am PISSED, memorex has lost my business. I am curious if i got a bad batch or has anyone else had this problem ?