Recorded video file created by Bosch Security Systems closed-circuit television (CCTV) systems; stores video in a proprietary format; used for archiving and reviewing surveillance videos.

DV4 files can only be played back using the Archive Player supplied with Bosch Security Systems CCTV purchases. When transferring DV4 video files to external media, you should also copy the Archive Player application with the video so that you can play it from the external device. NOTE: Archive Player version 2 can export captured video to .WMV and .MP4 files. It can also burn videos to CD and DVD formats. WMV exports include a required ".sig" file, and MP4 exports include a required ".ind" index file. Previous Archive Player versions can export recorded video to .AVI files. However, to play them, you must have the Xvid codec installed.