who writes that the copying speed decreases when set to zero, this is the same story. The following is the answer to such flash drives in general, which was pulled from a specialist forum that was discussing another flash drive but had a problem that was similar to this one: "a bad flash drive puts part of the file into the buffer, then saves it from the buffer to disk, and so on until it copies the entire file." This results in a recording that "jerks" due to its nature.
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