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cd's demagnetizing?
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zafer
IsraTrance Full Member
Started Topics :
65
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290
Posted : Mar 9, 2005 00:28
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is it possbile that many cd's put one on another compromise their quality because of mutual action of (electro-(?))magnetic fields or whatever ?? |
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phobium
Phobium
Started Topics :
14
Posts :
718
Posted : Mar 9, 2005 00:59
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Trip-
IsraTrance Team
Started Topics :
101
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3239
Posted : Mar 9, 2005 07:57
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CDs are an optic media - Unlike harddrives or 1.44" diskettes which are based on the magnetic principle.
 Crackling universes dive into their own neverending crackle...
AgalactiA |
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orik
IsraTrance Junior Member
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45
Posts :
317
Posted : Mar 9, 2005 15:09
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well...some of the rewritable cds also work on magneto optical principal.... |
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Pavel
Troll
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313
Posts :
8649
Posted : Mar 9, 2005 21:44
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Quote:
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On 2005-03-09 15:09, orik wrote:
well...some of the rewritable cds also work on magneto optical principal....
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errr, how?
Everyone in the world is doing something without me |
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orik
IsraTrance Junior Member
Started Topics :
45
Posts :
317
Posted : Mar 10, 2005 01:52
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well...
thers an opto magnetical surface sticked between which ever special plastic the cds made from, then a laser beem heats the sufrface by going from 1.5 watts to 4.5
heating the surface and changing the corresivity (ability of magnetizm to change polarity), then washed by a magnetic head changing its polarity and by that writing the bits on.
thats as far as i know... |
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neo _ sonic waves
Started Topics :
3
Posts :
28
Posted : Mar 10, 2005 11:26
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i think u have to be more careful of the sun lite , than the magnetic fields !!! ( maybe making a back up of your cd´s info will help you , if u loose quality , make another copy )
" Blasting and Reprogramming da Dance Floor " |
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EYB
Noized
Started Topics :
111
Posts :
2849
Posted : Mar 10, 2005 14:02
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Don't put cds on/in the near your speakers coz they can get erased. But with a strong magnet u can 'rewrite' the data to the disk 
Signature |
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orik
IsraTrance Junior Member
Started Topics :
45
Posts :
317
Posted : Mar 10, 2005 15:41
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On 2005-03-10 14:02, EYB wrote:
Don't put cds on/in the near your speakers coz they can get erased. But with a strong magnet u can 'rewrite' the data to the disk
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yes but not all disks, most disks actualy not, only some rewritable onse. |
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psykoactiv
IsraTrance Junior Member
Started Topics :
14
Posts :
651
Posted : Mar 13, 2005 22:09
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dude.. its optical... only MD's have magneto-optical layers..
u cannot damage normal cds with magnetic fields...
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>>>>>H Y D R A<<<<<
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full_on
IsraTrance Team
Started Topics :
279
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5475
Posted : Mar 13, 2005 22:21
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I's not optical, there's no such a thing.
It's Physical. When you burn a CD you physically change the CD.
Respect!
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...Be gentle with the earth...
...Dance like nobody's watching...
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...I don't mind not going to Heaven, as long as they've got Coffee in Hell... |
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zafer
IsraTrance Full Member
Started Topics :
65
Posts :
290
Posted : Apr 15, 2005 18:20
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thanks lot guys, i got hundreds of original cd's piled one on another that i store, and only use safety copies and it would not have been funny to discover my efforts to preserve oourr treassssure had opposite effect |
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Colin OOOD
Moderator
Started Topics :
95
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5380
Posted : Apr 15, 2005 19:29
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On 2005-03-13 22:21, full_on wrote:
I's not optical, there's no such a thing.
It's Physical. When you burn a CD you physically change the CD.
Respect!
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Bollocks. It's not physical, it's spiritual... everybody knows that physical objects are merely the manifestations of aspects of the universal 'one' and that any division between the mind of the observer and the CD being observed is purely an illusion. When you burn a CD (with a device that manifests itself in consensual reality as an 'optical laser') it's the universe writing data about itself onto itself.
I don't know, kids these days... no idea of what's what...
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Contact for bookings/mastering - colin@oood.net |
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UnderTow
Started Topics :
9
Posts :
1448
Posted : Apr 15, 2005 20:09
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Quote:
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On 2005-03-10 01:52, orik wrote:
well...
thers an opto magnetical surface sticked between which ever special plastic the cds made from, then a laser beem heats the sufrface by going from 1.5 watts to 4.5
heating the surface and changing the corresivity (ability of magnetizm to change polarity), then washed by a magnetic head changing its polarity and by that writing the bits on.
thats as far as i know...
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I think you mean coercivity.  But you are right. This is how CD rewritables work.
UnderTow |
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orik
IsraTrance Junior Member
Started Topics :
45
Posts :
317
Posted : Apr 15, 2005 21:35
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