I've bought 6 of these discs now. One had to be returned as it had terrible writing speed and just stopped working a few hours after first use. The rest had problems. Some of them worked very well for a while, and then the writing speed became really unacceptable. As it peaks at about 50MB for about 3 seconds and then drops to 355KB for about 20 seconds and then to 0KB before brief periods of being able to write. Context: I use them to clone images. I write to them once and then read large image files about a dozen times. Then (in a few months) I will erase/reformat and then put a new image. So I don't overuse them with a lot of continuous use or rewriting.
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