|
VHs was first released in September 1976, it was developed by JVC
with some licensing agreements with Sony (who created Betamax).
There are two main types of video recorders, they are S-VHS (super
VHS) which has 400 lines and is analog, and VHS that is 240 lines
and analog also. The numbers themselves are no indication of the
picture quality difference however, but generally S-VHS is an improved
analog standard, and the rare D-VHS standard. The number of heads
usually affects the quality of recording and playback. The more
recording heads, the better the result. Long play is another useful
feature to look for, because it doubles the recording time of a
tape.
Recommended Resources
- Comet
- Comet supply a wide range of Video recorders and Video recorders's.
- Empiredirect
- One of the countrys leading online electrical
retailers.
Due to DVD it seems that video recorders are becoming a lot cheaper.
It is even becoming hard to find video recorders in shops (Dixons
stopped selling them. Therefore you should beable to find one with
plenty of features such as nicam stereo sound and super long play
for under £100. We managed to buy a panasonic video player
for £80 on Comet which seems of a high standard, and can rewind
and forward at a fast speed. Plus one of the advantages of video
player is that all of them can record programs broadcasts on television.
Update - Now that Dvd recorders have come onto the market the death
of VHS recorders seem guaranteed, 2006 maybe the last year you can
find them in the majority of stores. So be quick if you want to
keep a little piece of electronics history.
A few things to consider are,
Mono videos will only record and play back in mono sound. Mono
sound is a sound channeled to a single speaker. It would be as though
you would have only one ear to listen with. This is udeful for things
such as AM radio broadcasts, but now not good enough for entertainment
systems such as Home Theatre.
Nicam videos record in stereo giving a crisper, clearer sound.
NICAM ( full name, NICAM 728) was invented during the early 1980's
by the BBC Research Centre, Kingswood Warren. It was first applied
to the British "System I" 625 line PAL colour TV broadcasting
system, and premiered in 1986 on the "First Night of the Proms"
concert programme. How NICAM works: It uses a higher frequency subcarrier
(5.85MHz on System B/G) and (6.552MHz on System I) than on on mono
system. This frequency is then modulated with a 728Kbits / sec datastream
digitally. The 728bit packets produced are then transmitted every
millisecond continuously. Nicam stereo sound can be found on both
televisions and video recorders (obviously play and record in nicam
stereo sound). They are usually more expensive than mono tv's and
vhs recorders.
Videoplus+ has been created as a system to encode tv programmes
by day-number, channel number and the published start time and duration
of a TV programme. This means people with videoplus+ can program
their video recorders to record programs weeks or days before they
happen. Videoplus is the UK version of a system which started in
the 'States a couple of years ago under the name VCR+. You can usually
find your videoplus+ codes in your tv guide and reasonably priced
recorders now come with videoplus+
NTSC playback allows video cassettes recorded in the NTSC (National
Television Standards Committee) system, eg. from the USA, to be
played back via a compatible UK PAL TV. This format is usual in
Europe, because the manufacturers can use parts of the PAL circuits
and so that money to save.
S-VHS is short for SuperVHS and was created by JVC to offer better
video quality than the VHS format. The quality of S-VHS is much
better because it offers over 400 lines of horizontal resolution
compared to appx. 250 lines of VHS. You do however nned to use S-VHS
videos in conjunction with the recorder to get this quality. SVHS
uses identical-looking cassettes to those of VHS, but you can recognize
the SVHS cassettes by a small hole in the cassette container that
VHS cassettes don't have. S_VHS are more expensive and so are the
videos used by them.
Long play doubles the recording time of a tape. Especially useful
for recording several long programmes on one tape. Currently some
top of the range video recorders also offer features such as 12
hour super long play for a E240 tape. This means it will record
for three times as long as the type lasts. There has in the past
been question marks over the quality of long play recording, but
this now seems to have been fixed.
Auto head cleaner ensures the tape heads of VHS videos are kept
clean, thereby improving both reliability and picture quality. This
can mean that your videos will last longer because they won't be
damaged and also the quality of your recording will be much higher.
Auto Head Cleaner recorders are usually quite expensive, but a worthwhile
function to have.
|