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 at FROM   :M.J.Jennings at damtp.cam.ac.uk                                 
 at SUBJECT:WILL MY COMPACT DISCS WORK IN AUSTRALIA?                     
Message-ID: <S93c.6437 at clarinet.com>
From: M.J.Jennings at damtp.cam.ac.uk ( Michael Jennings)
Subject: Will my Compact Discs work in Australia?
Date: Mon, 5 Feb 96 19:30:04 EST

People who read soc.culture.australian ^[ 1 ] See Newsgroups often have to answer
a number of questions about our country. These vary from the practical
(Will an American video recorder work with an Australian TV? What voltage
is used in Australia? What side of the road to Australians drive on?) through
to the curious (Does water really go down the plughole in the opposite
direction? What does Vegemite taste like?), to the, well, fairly clueless.

Recently we had the following thread.

(I haven’t asked the posters to this thread whether they mind if I
send it to rec.humor.funny, and I realise that these extracts from
posting are probably a bit long to come under ‘fair use’. I doubt if
any of them would mind, but sorry if you can’t use this for copyright
reasons).

Michael.

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From Grube (grube at aol.com):

I am coming to Australia for a 3 year stay. Should I bring my CD’s to play on
Aussie equipment?

From: adrose at news.gate.net (Adrian Rose)

You will need an American to Australian converter device.This is usually
hard wired into the CD player by a reputable Australian tech.They are all
familiar with the device.Just pop into any CD store and request the phone # of the nearest CD converter tech.Its usually only around $30 and you
will not even know it had been done.You will be able to play not only US
cds,and Australian,but as a bonus,European ones too!

CAution-do not try to play bootled CDs after the conversion,you will ruin
the cd player.

From: adrose at news.gate.net (Adrian Rose)

Sorry about that last post-to play your US cds in Australia,they merely
need to be passed thru a strong magnetic or x-ray field,such as you get
at Customs.Be sure to pass each one thru separately,as bulk passage may
leave the ones in the middle unplayable in Oz.

From: “Mark A. Gray”

Well…this may gave worked for you, but I found that the only way the get ’em
playing was to smear the shiny side with a very thin layer of vegemite.
‘Course this makes the inside of your CD player rather sticky, so make sure
you
have lots of tissues.

From: andersen at s4.elec.uq.edu.au (Hans Andersen)

Don’t listen to them. To play American CDs in Australian CD
players, you will need to regroove them. This is because Australian
CDs have a different track-width (i.e. 10 ums instead of 5 ums). To
do this you will need to buy some fine-grade sandpaper. Try to find
some with a grain size of between 8 and 12 ums (micrometers for
non-technical people). Put a piece of the sandpaper on a table with
the rough side up. Now put your CD on the sandpaper and turn it
slowly in a clockwise direction, pushing down hard.
Oiua la (spit) – now you have Australian standard CDs.

Good luck and I hope you enjoy Australia.

From: M.J.Jennings at amtp.cam.ac.uk (Michael Jennings)

No. That is completely wrong. Australian CDs are exactly
the same as American ones except for the fact that the ‘groove’
goes in the opposite direction. That is whereas an American groove
goes inwards as you go clockwise an Australian groove goes inwards
as you go anti-clockwise. This is because Australian cars drive on
the left and American cars drive on the right. If the groove direction
was not reversed there would be parity problems with car CD players.
Unfortunately, this means that you cannot play an American CD on
Australian equipment.

From: spg at Xenon.Stanford.EDU (Stephen P. Guthrie)

You smartarse. Obviously this is nothing to do with the side of the road
cars drive on. Do you seriously expect anyone to swallow that? Anyone with
a brain knows that it’s related to which direction water goes down the
plughole in the Southern hemisphere. In other words in the US the cd rotates
in a clockwise direction. In Australia it rotates anticlockwise. Of course
this is also true if you play your cds in South America for example. This is
actually quite neat because if you play your beatles cds in the Southern
hemisphere you hear all this neat ‘backwards masking’ stuff about Paul being
dead and taking marijuana. Also I heard that you hear all sorts of satanic
stuff in other rock albums, but I’m not a fan myself. My question: has
anyone done any experimets about playing cds at the equator or at the notrh
pole? At the equator do your cds stop playing altogether. What about in a
reduced gravity environment, like in a free faling elevator?

From: leslie at brisbane.DIALix.oz.au (Tye Leslie Sanders)

You’re all a bunch of liars!!!! In Australia the initials C.D. stand
for Completely Dislexic which means that the bits are scattered
at random all over the disc. All Australian C.D. players are
programmed to randomly search over the disc to find the right bit
to play next. It is very unlikley that it could cope with a disc
where all the bits were in order. I would advise you to record your
discs onto Hi-Fi video tape and connect an Australian VCR to a
stereo system. Australian and American VCRs are definitely compatible.

From: “Mark A. Gray”

I can’t speak for a reduced gravity environment, but I can speak for the
equator. It is interesting that you should bring it up, since many CD’s
simply
do not spin at the equator (or near it actually). In Singapore (for instance)
they had to ban a whole bunch of CDs or have them altered so that they would
play correctly (‘corse if they had a bit of vegemite their problems would be
solved). Video tapes and books(!) seem to suffer the same fate their.

Why don’t books work properly at the equator? And I have another question:
Short of smearing every page with vegemite, how do you get a northern
hemisphere book to work properly in the southern hemisphere? (I’ll be bringing
some books home with me when I leave here, so I need to know).

Thanks in advance.

From: leslie at brisbane.DIALix.oz.au (Tye Leslie Sanders)

Re-your querey on playing CDs in reduced gravity, it is not widely known
that on the last Space Shuttle mission it was decided to test the effects
of playing a compact disc in zero gravity with disasterous results.

When the disc was played, instead of the disc spinning, the entire
vehicle began to spin while the disc remained motionless, turning the
entire spacecraft into a giant centrifuge, nearly crushing the astronauts
to death before the commander was able to crawl to the machine and press
the stop button.

It has been suggested by some at NASA (who have now been dismissed for
discussing government secrets) that a compact disc was the cause of
the destruction of the Space Shuttle Challenger in 1985. As you may
recall, this was the first mission to take a civillian into space.
To ease her mind during take-off it was decided to simulate an
environment of Earth similar to that of take-off pressure so they
decided to play a CD of elevator music to give her the feeling that
she was riding up in the lift at her local shopping[unknown prefix: Act] centre. The
craft could not cope with the enormous centrifugal force generated
by the spinning disc and broke apart approximately 1 minute after
take-off. It was decided to cover up their gross negligence by
saying that the o-ring seals in the booster rockets were faulty.

All this is absolutely true or my name is not Ronald Reagan.

From: bobhilt at eskimo.com (Bob Hiltner)

This is a complete load of crap, and probably a troll. The ‘Borealis
Effect’ (or ‘Australis’ in the sourthern hemisphere) could in no way
overcome the power of the motor in a cd player. Besides, the ‘groove’
went out in the 60’s (70’s?). I’m no electrical engineer, but I’m
guessing that any backward playing effect is due to the 220v power
conversion (which would show up on euro equipment as well) or the reverse
polarity down under.

As for the gravity-free environment, who gives a shi*t? I think the
astronauts have their hands full anyway, and probably can get good FM
reception from any station on earth if they need music to dance by…

Some people are so clueless!

From: jtchew at netcom.com (Joe Chew)

Since the Earth rotates in the opposite direction in the
Southern Hemisphere, the AC power there is supplied 180
degrees out of phase with ours. Thus your CD should work
just fine, although some audio purists insist on a motor-
generator set to supply “American” electricity and then
determine the phasing themselves.

From: oauld at ponder.csci.unt.edu (Orion Auld)

At the equator, the cd’s stop rotating, so the cd players there must
rotate the laser about the stationary cd. The units are very expensive.

By contrast, at the north pole, cd players are very cheap. This is because
neither the laser or the cd require a motor to provide rotational energy;
the cd is placed precisely on the north pole, tied to the firmament
so that it doesn’t spin , while the laser is fixed to the earth, slightly
off-center, and the earth provides the rotation.

What about in a reduced gravity environment, like in a free faling elevator?

The cd’s are virtually weightless, so they can be very massive and yet
consumers will have little difficulty operating them. I hope that
answers your question.

From: gunson at ocean.mit.edu (Jim Gunson)

I’m glad you brought this up. The variation of the Coriolis force
with latitude (zero at equator, max at north pole, min at south pole),
gives rise to the so-called beta effect. Basically what happens is that
when a clockwise-spinning object, in the northern hemisphere, moves north
it speeds up, when it moves southe it slows down. I’ve conducted
experiments whilst driving my car here in Boston: if I head north on
route 93 at 75 mph with Kylie’s “Locomotion” on the CD player, the pitch
of her voice goes higher, but you have to be going pretty fast to notice
this. Heading west or east this doesn’t happen.

To the original poster, if you do find you’re having trouble with the
Coriolis force adversely affecting your US cd’s in australia, try
turning the cd player upside-down.

From: Adrian Rose

No,no,no……………….please dont confuse the Coriols effect with
the Doppler effect-the two are quite unrelated,and the Doppler effect is
ALMOST unnoticeable,when playing out-of-area CDs,or even records.

The effect was most noticeable on 78’s,but that’s now academic.

BTW,I am able to offer the conversion at only 75cents (us),if done in
bulk.E-mail for quotes.

From: pholman1 aol.com (PHolman1)

No if regrooved in the N Hemisphere the must be spun counterclockwise,
remember Aussie turntables etc spin the opposite way, ps Marmite works as
well as Vegimite.

From: Armadillo

No, American compact discs will only work if you drive on the right-hand
side of the road.

But I wouldn’t expect an aol.com user to know these things.