View Full Version : remagnatize cds
SuiCidAl-KiSmEt
05-26-2007, 8:40 PM
How do I remagnetize a CD? My computer or software just... I don't know how it happens, but the CDs are at 0kb free space and 0kb used, so I guess they are burned out, though they didn't really got hot. I tried putting files into new 700mb CD-RWs, but my computer messed them up. So, I'm just wondering how I can remagnetize CD and what tools or ways I can do it. So I won't wast $3 dollars in less the 30 minutes.
...I'm sorry, but "remagnetize a cd"?
What does that even mean?
Have you tried any other media? A different cd burner program? Etc...?
-Neo
OboeGuru
05-26-2007, 10:11 PM
First off, there is absolutely no magnetism involved in the CD-RW burning process. It literally is a burning process.
If the burning process fails for whatever reason before the disc has completed burning, it registers as null used and free space because the session was not closed.
You're fortunate that you're using CD-RWs. The disc is not ruined or unusable in any way, you just have to erase it and try again. Any CD burning program should have a CD-RW erase function somewhere.
Just don't do anything else on your computer while the CD is burning. It's unusual for discs to fail the burning process nowadays, but it still happens. If it keeps failing while your computer is doing nothing else but burning the CD then you might want to try different software.
SuiCidAl-KiSmEt
05-26-2007, 10:57 PM
remagnetize a cd?
I don't think remagnetize is a word, eh. CDs store information through some sort of magnetic technology, it stores electric codes of 1s and 0s blah blah blah that way. That's why CDs don't require a power source like computers to keep its information, and CDs can lose its magnetism if it isn't used for an extremely long time unless it is used again in a computer where it recharges. When I saw that it says it has no free space or room occupied, I assume it's magnetism was scraped away. When a magnet loses its strength, it should always be able to be remagnatize. And I want to fix it. But I'm starting the think my idea is a bunch of crap and I'll just try to do what OboeGuru said or play around until for a bit more. :|
Modred
05-27-2007, 3:05 AM
I don't think remagnetize is a word, eh. CDs store information through some sort of magnetic technology, it stores electric codes of 1s and 0s blah blah blah that way. That's why CDs don't require a power source like computers to keep its information, and CDs can lose its magnetism if it isn't used for an extremely long time unless it is used again in a computer where it recharges. When I saw that it says it has no free space or room occupied, I assume it's magnetism was scraped away.
As Oboe said, CDs do not use magnetism. You're thinking of things like hard drives, RAM, and flash memory. CD burners store information by etching patterns into the silicon underside of a compact disc. It's more like a vinyl record than a magnetic tape. Thus, if you have information on a CD and it disappears, it's because the grooves were scratched off and the laser, which replaces the needle for our record analogy, cannot read grooves that no longer exist.
As for the 0 Kb thing, your disc never finished burning. I believe Oboe already said that. =p
bluemicrobyte
05-27-2007, 5:13 AM
As Oboe said, CDs do not use magnetism. You're thinking of things like hard drives, RAM, and flash memory. CD burners store information by etching patterns into the silicon underside of a compact disc. It's more like a vinyl record than a magnetic tape. Thus, if you have information on a CD and it disappears, it's because the grooves were scratched off and the laser, which replaces the needle for our record analogy, cannot read grooves that no longer exist.
As for the 0 Kb thing, your disc never finished burning. I believe Oboe already said that. =p
Yeah, modred is right. A hard drive stores data in the form of magnetized bits. Putting a hard drive by a powerful magnet would completely wipe it out.
A CD stores data in the form of a physical pattern that has been stamped or burned on to the disk -- it's a series of "blank" and "burned" spaces -- that can't ever be changed (except in the case of CD RWs which can be erased).
SuiCidAl-KiSmEt
05-27-2007, 11:17 AM
Hm... I apologize for my ignorance. Seems like I haven't learned anything from school. ;/
The programs does have an Erasing tool and I've been using both of them, yet they still didn't fix the free and available space. I'll try to keep erasing the CD though. As you mentioned it, I did do something while it was burning. It was going so slow, so I decided to change the available (virtual) disc drives by Daemon Tools, and since it was going slow, I canceled the burning process to change the burn speed to Fastest. :X
:X
U-238
05-27-2007, 12:00 PM
You're thinking more in the lines of a floppy disk which do use magnetism to hold data. By rubbing a magnet across a floppy disk you erase all data on it. Just like a harddrive. (except you can also use this trick to revive floppies that are "unwritable" for at least a short period of time. Usually longer.)
Basan
05-27-2007, 12:01 PM
If it was CD-RW then you can use it again after a full deletion process. If it were a CD-R then it'd be lost, 'Kismet.
bluemicrobyte
05-29-2007, 12:57 AM
As you mentioned it, I did do something while it was burning. It was going so slow, so I decided to change the available (virtual) disc drives by Daemon Tools, and since it was going slow, I canceled the burning process to change the burn speed to Fastest. :X
:X
Anytime you cancel the burning process while it's in progress, the CD becomes "un-usable" -- however, since it's a CD-RW you should still be able erase it and use it like new. If there's a "quick erase" or "full erase" selection box, try checking "full erase"
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