You cut & paste 9 folders of music from a hard drive to a jump drive. You watch them going over but, only 4 of them made it! Where are the others?

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I founded them! I accidentally put them into another of the folders as IT was coming over at the same time. I thought I checked all the folders but, I guess I didn't check that one.
You cut & paste 9 folders of music from a hard drive to a jump drive. You watch them going over but, only 4 of them made it! Where are the others?
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