e/Proprietary DVR

Information
has gloss	eng: DVRs, or Digital Video Recorders, are devices which record video to a hard drive. The term Proprietary DVR refers to exclusive methodologies used to maintain commercial control over the DVR format and prevent third party copying of a particular file. CCTV systems are used for the detection and recording of crime, but the analysts and law enforcement personnel who are required to obtain and process video recorded with proprietary DVRs may face problems using the proprietary format.
lexicalization	eng: proprietary DVR
instance of	c/Digital video recorders