Because of the differences in the processes involved in the electronics of the various systems, copying in like standards will produce a higher quality output than a conversion will. Clone - Any broadcast format videotape made from another broadcast format videotape that matches identically, in content, specifications, format and broadcast standard, the master from which it was made. Color Bars - A test signal that is designed to be recorded onto a videotape to provide the necessary elements for visual set up of the video equipment that facilitates the alignment of that particular recording during playback. The test signal may vary from facility to facility but its purpose is always to provide a specific standardized signal. It includes white level, black level, chroma level, and hue information.
Color bars are to video what tone is to audio.
Component - Individual elements that represent parts of the composite signal. Composer Dub - A videotape copy made specifically for a music editor or composer. The onscreen time code window provides the composer with a visual time code reference while the audible channel 2 time code provides machine reference. Specifications for composer dubs vary depending upon the requirements of the particular composer. Composite - A complete signal that includes all sync signals, blanking signals, and active video.