Disconnecting Your Player From The Computer - RCA MC5104 User Manual

Transferring Files to the Player

Disconnecting your player from the computer

Do not disconnect the USB connection during file download. Doing so may corrupt
system files or the files being downloaded.
For Windows XP users, your player is connected in MTP (Media Transfer Protocal) mode to your
computer by default, you may disconnect the USB cable directly when file download is completed.
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