What if the recipient receives the physical support that host the original copy , say a usb thumbdrive or a hard drive and the original customer keeps the copy

What if the recipient receives the physical support that host the original copy , say a usb thumbdrive or a hard drive and the original customer keeps the copy ? Then what if the customer gives a copy then delete the original but the OS being windows on the FAT entry is deleted and the data still lives on the drive ? How would one distinguish between original copy and subsequent copy when they're all identical ? Last but not least, if you read the fine print when you buy an audio cd, you don't buy the music but a piece of plastic and a license to listen to music the piece of plastic hold. This license forbids you from allowing other people from listening, so if you play the CD on speaker with you window open and someone happens to be walking in the street you are now guilty of an illegal communication to the public of copyrighted content.