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VHS
VHS is a video tape cartridge format developed
by JVC for the consumer market. VHS and
Beta
(a format developed by Sony) were the original
competitors in the home vcr (video cassette
recorder) market. Despite arguably better
technology, VHS dominated the marketplace and Beta
faded from the market, though it still exists in
some advanced forms.
VHS
is comparatively "low" in quality, with
approximately 250 lines of resolution. It is not
suitable for television production work. One of the
biggest problems with VHS is that it does not dub
(copy) well. There is a large image loss when you
make a dub from one tape to another. This is partly
because of the way the separate elements of the
picture signal (color and brightness) are recorded
together on the tape.
VHS-C
When Sony released the 8mm video format the VHS-C
format was developed. This was a smaller cassette
which contained the same size video tape as the
original VHS cartridge, there was just less of it
in the cassette. You can also get a cassette holder
which is the size of an original VHS cassette, and
holds the VHS-C cassette. The VHS-C cassette can
then be played in a regular VHS vcr.
One
notable limitation of the VHS-C format is the
length of the tapes; only 20 minutes
long.
VHS-C
should not be confused with S-VHS,
which offers improved image quality.
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