The BVW-40 enabled for the first time editing to a Betacam master, and if set up and wired correctly, true component video editing.It is not to be confused with the related but incompatible Betamax format, nor the consumer-oriented Betamovie camcorder line.Family of broadcast magnetic tape-based videocassette formats.The cassettes are available in two sizes: S (for Short) and L (for Long).
The Betacam camcorder can only load S magnetic tapes, while television studio sized video tape recorders (VTR) designed for video editing can play both S and L tapes. There is also a mechanical key that allows a video tape recorder to identify which format has been inserted. Mpeg 2 Video Linear Pcm Timecode Codec Professional Video CameraIn addition to improvements in video quality, the Betacam configuration of an integrated professional video camera recorder led to its rapid adoption by electronic news gathering (ENG) organizations. 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. This splitting of channels allows true broadcast quality recording with 300 lines of horizontal luminance resolution and 120 lines chrominance resolution 2 versus 0.4 MHz chroma bandwidth for BetamaxVHS (30 lines resolution left-to-right) on a relatively inexpensive cassette based format. 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 Betamax cassette was not well suited to the faster tape transport of Betacam. Betamax records relatively low resolution video using a heterodyne color recording system and only two recording heads, while Betacam uses four heads to record in component format, at a much higher linear tape speed of 10.15 cms (3.99606 in.s) compared with Betamaxs 1.87 cms (0.7362205 in.s), resulting in much higher video and audio quality. A typical L-750 length Betamax cassette that yielded about 3 hours of recording time on a Betamax VCR at its B-II Speed ( NTSC ), or on PAL, only provided 30 minutes record time on a Betacam VCR or camcorder. Another common point between Betamax and Betacam is the placement of the stereo linear audio tracks. The first cameras were the BVP-3, which utilized three saticon tubes, and the BVP1, which used a single tri-stripe Trinicon tube. ![]() The only transport controls on the deck were Eject and Rewind. The docked cameras VTR button started and paused the tape recorder. Mpeg 2 Video Linear Pcm Timecode Codec Full Transport ControlsLater the Betacam SP docking decks had full transport controls (except a Record button) but tapes could not be played back except in the cameras viewfinder in black-and-white only. Mpeg 2 Video Linear Pcm Timecode Codec Portable Unit ThatSony then came out with the Play Adapter, a separate portable unit that connected via a multi-pin cable and had a composite video out jack for color playback. At first color playback required the studio source deck, the BVW-10, which could not record, only play back. It was primarily designed as a feeder deck for AB roll edit systems, usually for editing to a one-inch Type C or three-quarter-inch U-matic cassette edit master tape. ![]() Unlike the BVW-10, it did not have a built in Time Base Corrector, or TBC. The BVW-15 added Dynamic Tracking, which enabled clear still frame and jog playback, something the BVW-10 could not deliver.
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