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Topic: Magnetic fields , televisions and radios can damage DVD RW? (Read 6695 times) previous topic - next topic
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Magnetic fields , televisions and radios can damage DVD RW?

when I bought my  DVD RW I received a booklet.
in the booklet,  Under safety information written:

"do not use or place this device near magnetic fields, televisions, or radios to avoid electronic interference that affects drive performance"


Magnetic fields , televisions and radios can damage my DVD RW Or that the company only covers itself?


if so,
How long since the beginning of use of devices with magnetic fields  the DVD RW can be damage?

magnetic fields affects drive performance only when the drive in action (burning,reading)?


The computer itself is not a magnetic field?






jonathan.


Magnetic fields , televisions and radios can damage DVD RW?

Reply #1 –
What is the point of this post? Or, what is the real question?
TAPE LOADING ERROR

Magnetic fields , televisions and radios can damage DVD RW?

Reply #2 –
If I understand correctly, the questions are:

Can magnetic fields, televisions and radios really damage a DVD-RW drive?
How long does the drive have to be exposed to magnetic fields, televisions or radios in order to get damaged?
Does the drive get damaged only when it's operating near magnetic fields, televisions or radios, or even when it's stored there?
Does the computer not count as magnetic field?

Magnetic fields , televisions and radios can damage DVD RW?

Reply #3 –
The warning says nothing about "damage", i.e. a permanent change in the device. What it says is that its performance may be affected WHILE there is such a magnetic field close to it.

In my opinion the warning is too alamarist. I doubt that the mentioned devices will emit a magnetic field strong enough to result in a noticeable difference.

Magnetic fields , televisions and radios can damage DVD RW?

Reply #4 –
Let's say that drive performance was affected,
in this case EAC can discover it?

Magnetic fields , televisions and radios can damage DVD RW?

Reply #5 –
The description is entirely too cryptic to tell, but if you are really concerned then try the experiment yourself. Place one of the mentioned offending devices close to your DVD-RW and see if you can tell a difference.

Magnetic fields , televisions and radios can damage DVD RW?

Reply #6 –
I think magnetic fields that do not extend into the room with enough power enough to move a clothespin are generally not a problem.

For comparison, the unit itself contains a tiny magnet that is several times stronger than the field projected by a CRT. Just open up an old optical drive and crack the reading unit.

Magnetic fields , televisions and radios can damage DVD RW?

Reply #7 –
Quote from: pdq on
The description is entirely too cryptic to tell, but if you are really concerned then try the experiment yourself. Place one of the mentioned offending devices close to your DVD-RW and see if you can tell a difference.
Seems to me not that yonatan is asking whether magnetic interference can cause a drive to return audibly different data, but whether EAC will be able to determine/report that (if) a drive has been damaged by the same. Answer: no. Besides EAC reporting an increasing frequency of errors if the (hypothetical) damage is that bad, and the user noticing this, there will be no indication; you will not get a dialogue box telling you to turn off your TV.

I imagine the manufacturers of whatever magnetic equipment were just covering their backs for the (slim) chance that radiation from their products could damage other devices. People will sue for anything nowadays, however tenuous the causal link.

Magnetic fields , televisions and radios can damage DVD RW?

Reply #8 –
Quote from: pdq on
I doubt that the mentioned devices will emit a magnetic field strong enough to result in a noticeable difference.

My thoughts as well. Back in the day when I had a cassette player I'd demagnetize the heads often with and electrical handheld demag tool and my DVD player was always within the supposed "kill zone" proximity of it and received no obvious damage and still works good today. Plus I never got a DVD player pop-up saying "please re-magnetize me." 

If it was an issue everyone would probably know of it since we've used disc drives for so long rather it be for a computer or home entertainment.

Magnetic fields , televisions and radios can damage DVD RW?

Reply #9 –
I bet it's just to prevent interference to the operation of the optical lens because I think the lens is adjusted by electromagnetism?

Magnetic fields , televisions and radios can damage DVD RW?

Reply #11 –
Here in this part of the galaxy its prety difficult to stay away from magnetic fields.

Magnetic fields , televisions and radios can damage DVD RW?

Reply #12 –
I hear the Intergalactic Void DVD player, which is in geostationary orbit (galacto-stationary?) around the Milky Way provides the best audiophile quality.

Shame you'll have to wait 200,000 years for it to respond to a Play signal from your remote.

Magnetic fields , televisions and radios can damage DVD RW?

Reply #13 –
More than 10 years ago I was at friends place, he had some pentium based computer, P200 I think, and I was at his place with some CDs I wanted to rip, and I brought him software, popular at the time - but forgot the name. In the neverending fight against "jitter", that software had nice feature of ripping whole track to RAM and showing the green waveform, than ripping it again and comparing the waveform. If there were errors, it would show it with red colour. And it wasn't WinDAC
Anyways, friend had desktop case, and he placed his mobile phone on top of it, where CD reader was. While ripping, mobile phone ringed (there was no vibration), and the software was in the second read... everything was green, but the moment phone rang, reading slowed down and reading errors occured.
So yeah, I guess magnetic fields affected old drives quite a lot, but I doubt it would affect them that much nowadays. And then again, even if EAC wouldn't notice errors, I guess Accuraterip would.
TAPE LOADING ERROR

Magnetic fields , televisions and radios can damage DVD RW?

Reply #14 –
That's not necessarily from magnetic fields. More likely from electrostatic field.