Betacam is a high quality professional video format based apon the component video standard. Betacam is a portable, professional camera/recorder format developed by Sony. Betacam format is a defacto broadcast video format world-wide. Betacam format records all three signal components (Y,U,V) independently so that there is minimal signal loss during the record/playback process. It is able to do this by using a process known as Compressed Time Division Multiplex.The signal carrying the colour information, U and V, is time compressed and recorded on to one video track while the luminance, or Y, signal is recorded onto a second track. The use of two separate tracks eliminates the cross colour and cross luminance effects inherent in composite recording. Both tracks are recorded using high frequency FM (frequency modulated) carriers.Both oxide Betacam and Betacam SP produce image quality superior to S-VHS and Hi8 formats, primarily because of Betacam's separate recording tracks for luminance (Y) and chroma (Cr and Cb), rather than the color-under modulation method of S-VHS and Hi8. Betacam SP is a superior performance version of Betacam. Betacam SP uses metal particle tape and a wider bandwidth recording system(which gives better picture quality).The majority of broadcast electronic news gathering (ENG) operations currently use Betacam SP camcorders and VTRs. Virtually all broadcast stations require (or at least strongly prefer) Betacam SP source footage. Nowadays this demand for for Betacam SP footage has changed somewhat to prefer the new digital vidoe formats (DV, DVCAM etc..).
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