View Full Version : Erasing data from CD-R?
14-09-2004, 11:54 AM
May seem like a dumb question, does there happen to be any other method, as in a piece of software, that can erase data from a CD-R, instead of literally burning it, or scratching it, or snapping it.
14-09-2004, 12:04 PM
Nope - once data's burnt on a CD-R, it's there for good.
14-09-2004, 12:06 PM
whats the point of eraseing data off a cd-r, you can't re-write data onto it. i can't see what there is to be gained by eraseing anything off it (assuming you could do it of course).
14-09-2004, 12:40 PM
You _cant_ erase Data off a CD-R, however if it is a Multisession Disc you can change the TOC so it doesnt show it and re-burn it (Requires 14MB on the CD-R to continue a session....)
14-09-2004, 12:46 PM
3 seconds on high in the microwave works a treat.
If you turn the lights off in the room you get a little blue flash at the end - very amusing with no ill effects to the microwave.
Why the paranoia?
14-09-2004, 12:52 PM
> 3 seconds on high in the microwave works a treat.
> If you turn the lights off in the room you get a
> little blue flash at the end - very amusing with no
> ill effects to the microwave.
> Why the paranoia?
LOL. Can I borrow your microwave?
14-09-2004, 12:54 PM
I just happened to have a CD with some data on it that I don't want anyone to find out about.
I am not too sure to do to the microwave thing as I am not too sure if you were being serious.
About the other other option, burning new data to it, will the old data still be physically on the disc? and is it still readable?
14-09-2004, 12:56 PM
Hide it under your matress.
14-09-2004, 12:58 PM
>About the other other option, burning new data to it, will the old data still be physically on the disc? and is it still readable?
just destroy the disk.
Read an article once that said even if you throw your had drive into an incinerator that they could still get data of it, the same article also wen on to say that even if you melt a cd, eventually they would be able to retrieve the information it contained. I do however find this hard to believe myself, and I can't remember where the site was that had that article.
just look in your friendly kitchen cutlery draw, utensils in their should easily erase data on a CD-R.
OR OR OR OR OR OR.
rip the top of an old CD-ROM, and use that friendly peice of cultlery, and make the CD spin up. and by my claculations, it should work like an old record player, but instead of it playing music, it should project the data in a holographic format. or if that doesnt work. just snap it.
your safer just phycially destroying the disk.
14-09-2004, 01:47 PM
read data off a melted cd?
lmao,i throw mine in my weekly fire,they turn to liquid.....
If your genuinley worried the data shredding guys do granulate c/ds. and HDDs.
14-09-2004, 02:17 PM
Well thats not true either. You can erase whatever you want from CDR's (ie - if you delete a 10mb file off a CDR), u wont get that 10mb back.
If the CD hasn't been finalised. And then continue copy files to that CD, if there's still space on it.
BUT with CDRW what u delete u can replace. And format.
I just cut them up / destroy them with scissors, that'll screw it completely lol. You can even snap them in half with your hands.
14-09-2004, 02:19 PM
the microwave method is very good and fast.
I have often use the microwave to dispose of data before chucking the CDs out.
about 5 seconds on high, best to do one disk at a time.
just wait for the flash and you know all the data is gone.
14-09-2004, 02:24 PM
And for the REALLY paranoid, Dick Smith even sell a CD shredder for this lol.
Just type in cd shredder @ http://www.dse.co.nz
14-09-2004, 03:28 PM
> Well thats not true either. You can erase whatever
> you want from CDR's (ie - if you delete a 10mb file
> off a CDR), u wont get that 10mb back.
Sure you wont get the space back but the data is still and thus not erased. There are programs out there that can get the data back even if you can't see it from windows.
Therefore as they all said you can't erase the data unless you physically destroy the disk.
14-09-2004, 03:53 PM
> just destroy the disk
and if you're still worried, post the pieces to randomly selected addresses in Africa and Finland, along with instructions for digestion... B-)
14-09-2004, 04:42 PM
yea, i was thinking perhaps of a program that could just set ur burner to max speed and put laser on high constantly, then move from start to finish.
it should then create a groove all the way around and then the Data should be destroyed.
though DSE's CD shredder is probbly easier
14-09-2004, 04:58 PM
I find myself speculating as to the nature of the data that has got our man so paranoid. Something which could get him into trouble?
Hey Bruce my curser is doing that thing again!!!!!
14-09-2004, 05:00 PM
Maybe some evil plans for an atomic bomb?
14-09-2004, 06:24 PM
Yeah, what have you got on there that you don't want anyone to see? ;-)
14-09-2004, 06:37 PM
> Maybe some evil plans for an atomic bomb?
Every dog and his money could get those. ;)
14-09-2004, 06:38 PM
monKey sorry. Freely available on teh intarweb.
07-12-2006, 07:56 PM
firstly i defianantly know that data cannot be recovered from a melted form of medium such as Cds or hard drives, which is why if the feds show up at my door i always have a roaring fire ready for my hard drive. The old method of hard drive destruction was to drill a hole through it anywhere. But identity theifs and other such a-holes figured out how to do deep data recovery. which is when you can look at the data that is on a drive regardless of whether or not it is supposed to be visible. When you delete a file youre not really "erasing" it. all youre doing is telling windows that that file is no longer needed and that that section of drive that it was taking up is now available to write to. so if nothing gets written over it, then it will still be there.... for identity theft. so when i have the need to throw out a drive that may contain credit card #s emails whatever. I MELT IT IN A FIRE NOT A MICROWAVE
07-12-2006, 07:59 PM
and i also know that there is a way to actually RE burn (and erase) a cd r. i watched my friend do it. i dont remember what he did but he had a burnt music disc and erased it and put porn on it lol
07-12-2006, 10:17 PM
What's wrong with using a good old set of heavy duty kitchen scissors??
Ever tried playing a sliver of a CD in a CD player?
Get real :(
08-12-2006, 11:06 AM
Its not possible man. CDR has pits and land thro which the laser strikes and makes its sign.
08-12-2006, 11:17 AM
Why did you bring up a thread that is over 2 years old? It has not been brought up for over 2 years old because people stopped caring and let the thread DIE
14-03-2007, 06:01 AM
I've actually erased data from a cdr and had all 700mb afterwards. It was probably just a one time glitch in the software but somehow it did it. I was using Nero. I started adding files and then clicked burn but realized my cd tray was still out so i pushed it in. I then got an error message (i dont remember what it said. It exited and i went to add them again and the previous data wasnt there so i went to check the free space and it said i still had all 700mb.
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