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- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: Backup on VCR
- Message-ID: <1993Jan8.014724.987@miavx3.mid.muohio.edu>
- From: mchandy@miavx3.mid.muohio.edu
- Date: 8 Jan 93 01:47:24 EST
- References: <72918@cup.portal.com> <1993Jan6.015343.982@miavx3.mid.muohio.edu> <1993Jan7.145418.28574@fwi.uva.nl>
- Lines: 27
-
- >>That seems awful slow for a 40meg backup...especially considering the time to
- >>verify the data (a must-do when using videotape with all its dropouts).
- >>There are PCM systems which can store the equivalent of 2GB of digital music
- >>(sampled at 48kHz) onto a 2 hr videotape.
- >
- > Ah .. but your ear won't mind if you loose a couple of bits in a dropout
- > (PCM logic won't mind either), but I'm sure you'd hate to loose two bits
- > from your latest version of ProPage ...
- >
- > But I concur; two hours is too slow. I do think Stereo VCRs could do a
- > better job if you could use the full bandwidth of the tape.
- >
- > -- Rob
-
- -------
-
- Rob,
- The video backup systems use the video signal to store the digital
- information (like the PCM encoders). Also, the PCM encoders use a sophisticated
- error-correction algorithm so that minor dropouts won't interrupt performance.
- This should be the same with videotape-backup systems. A videocassette
- recorder capable of higher resolutions would be capable of storing more info.
- on the video signal of the cassette (such as SuperVHS and Hi-8)
-
- I am looking for some kind of interface to use my DAT recorders for
- backing up my HD (1.4GB per 2-hr tape). Anyone hear of these?
-
-