88(4) Enter a User name and password and click on OK to log in to the DVR:(5) Drag the "updatepacket.bin" file to the entry box which shows after opening the files asillustrated below:(6). Click the BIOS button to the updating.(7). USB UPDATERe-name the updatepacket.bin file to vss.bin, put it into the root directory of a USB drive, then plugthe USB drive into the USB port on the DVR. Using the DVR’s OSD interface, go to Main Menu >Maintenance > Version and click on Start to install the update.5.9. TERMSDual-streamDual-stream: one high bit rate stream for the local HDD for storage QCIF/CIF/2CIF/DCIF/4CIFcoding; uses other low bit rate stream for network transmissions, such as QCIF / CIF coding.I Frame