When the 3592-E05 uses a MEDIA5, MEDIA6, MEDIA7 or MEDIA8 partial tape for output, the tape could have been written in either EFMT1 or EFMT2 recording technology. In contrast, MEDIA9 and 10 partial tapes are always recorded using EFMT2 technology. DFSMShsm automatically determines the format in which a tape is written and extends the tape in the same format.