This term can refer to periodic retensioning of tape, or the rerecording of recorded information onto the same tape (or different tape) to refresh the magnetic signal. In the audio/video tape community, refreshing generally refers to retensioning of the tape, but it can also refer to the copying of one tape to another. See transcription.
a procedure used to maximize the life expectancy of magnetic tapes and disks. In magnetic tape, refreshing involves unspooling and rewinding tapes to relieve stresses. In addition, data on the tapes are transcribed and rewritten to refresh the magnetic signal and prevent data loss. In magnetic disks, the term refers only to the rerecording process.