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HDCAM HDCAM is a version of Betacam. Digital Betacam, or Digi Beta, is a video digital recording format in standard definition, while the HDCAM is the high definition version of it. HDCAM was introduced in 1997, and it was the first HD broadcast format at the time. HDCAM SR (Superior Resolution) is a newer version of HDCAM, introduced in 2003. The HDCAM SR is more commonly used in HD television news today as a master recording format, although television shows across the world still use HDCAM for shooting. Like other Betacam tapes, the HDCAM is colour coded – they are black with an orange top, and HDCAM SR tapes are black with a cyan top. One of the major differences between the two types of HDCAM is that the HDCAM requires a lower data rate to record the HD footage, thereby squishing the image. The HDCAM SR does not squish …
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Betacam The original Betacam format was launched on August 7, 1982. It is an analog component video format, storing the luminance, “Y”, in one track and the chrominance, on another as alternating segments of the R-Y and B-Y components performing Compressed Time Division Multiplex, or CTDM.[1] This splitting of channels allows true broadcast quality recording with 300 lines of horizontal luminance resolution and 120 lines chrominance resolution (versus ≈30 for Betamax/VHS), on a relatively inexpensive cassette based format. The original Betacam format records on cassettes loaded with oxide-formulated tape, which are theoretically the same as used by its consumer market-oriented predecessor Betamax, introduced 7 years earlier by Sony in 1975. A blank Betamax-branded tape will work on a Betacam deck, and a Betacam-branded tape can be used to record in a Betamax deck. However, in later years Sony discouraged this practice, suggesting that the internal tape transport of a domestic …
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