C-Cube Message Board - Msg: 2419607

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Technology Stocks : C-Cube

CUBE 37.72

+0.9%

3:59 PM EST

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To: Kibby who wrote (23710)	10/11/1997 1:19:00 PM
From: BillyG	of 50808

More on the "DV" format for digital video cameras............ The resolution of DV is 720 X 480 and it runs at 30 frames/sec. Isn't this better than MPEG1 resolution? It uses a DCT compression algorithm, as does MPEG, but it results in much less compression -- only about 5:1. The lower compression results in excellent quality video, but the penalty is a higher bit rate -- up to 25 Mbits/sec. This bit rate is O.K. for tape storage, but not so good for disc storage. MiniDV tapes hold 60 minutes. MPEG2 is about 10 Mbits/sec max. 1394 Firwire is designed for bit rates of up to 100 Mbits/sec, so it can easily handle the DV bit rate. The Sony DCR-PC7 Mini DV digital video camcorder is much smaller than any analog camcorder. It is 2 3/8" wide X 5 1/8" high X 4 5/8" deep. The audio recording is stereo PCM digital. The big downside is the cost -- list $2899. Bring on CUBE's $50 DVx encoder!

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