Newsgroups: rec.audio.misc,rec.audio.tech
Subject: Re: CD-R voids warranty?
References:  
"Scott Vermillion"  writes:

> IMO, the service manager reacted out of ignorance and fear.  

That's what I also expect on those CD-R issues. Maybe there has
someday been a CD player damaged caused by some reason and some
people mistakenly made a conclusion that CD-R was the reason.
And after that some clueless managers reacted out of ignorance and 
fear on the situation telling that using CD-R is dangerous. Antt
this started a hype over the industry where more people reacted.

> Some of the cheaper CD-Rs that we've tried at the shop make a lot of
> noise and cause a lot of vibration when they're being read.  
> We suspect that they're poorly balanced.  

I haven't got such CD-R-disks to my hands, but I have seen
some poorly balanced commercial audiio CDs on the market.
Those make quite interresting noise when you put hose to a high
speed CD-ROM driver which starts first to rotate them at high speed.

The vibration caused by poorly balanced CDs is real, but
that has nothing to do with the fact if the CD is normal
audio CD made in factory or a CD-R-disk.

> It's not hard to imagine some
> of those cheap CD-Rs causing damage over the long term.

Other potential problem which comes to my mind are some labels
used with CD-R disks. There are those labels where you can
print your own logo and then glue them to the CD-R disk
like a sticker. If those labels are not put there well, those
are a real disk of damaging something. If I were a equipment
manufactuers, I would be much more worried of the damages caused
by those than the harmless CD-R technology which either works on
your CD-player or not. So the technicalk difference is just few
bits stored to disk on the factory.

CD-R and CD-RW technology is coming to the consumer audio equipments
quicly. Philips is selling recording CD players which can store music
to both audio CD-R and CD-RW-disks. And those audio CD-R disks are 
after that ment to be played on normal audio CD players and audio
CD-RW-disks on the ones which can readl also those (Philips has a selection
of normal audio CD players with the capability, I won one such equipment).

The audio CD-R and audio CD-RW disks sold for audio equipment use
are exactly the same technology as the computer CD-R-disks with just
two small differences: the disk information track stored in factory
has different type code telling that this is for audio recoder
use and their price is different because of different reasons
(smaller market, different taxation and customs in some countries).

Has anyone ever heard any real fact of any equipment damage caused
by the CD-R-disk ? A damage caused by the fact that the disk was
a CD-R and not any other type ? If you have heard of it, what
was damaged and what caused the damage ? 

-- 
Tomi Engdahl (http://www.iki.fi/then/)
Take a look at my electronics web links and documents at 
http://www.epanorama.net/