How To Destroy Cds In Bulk
On a multisession disc, you lose about 23MB of space when the first session is closed (to pave the way for the 2nd session), and about 14MB for each subsequent session. Hang them from the rear view mirror in your car. share|improve this answer edited Nov 9 '13 at 13:37 Journeyman Geek♦ 99.2k31185315 answered Oct 15 '13 at 18:31 Diogo 20.2k48122197 2 The microwave method is actually not so much dangerous Given the normal degradation rate alone, the life expectancy for RW and RAM discs will be less than that of R discs.
EDIT Edit this Article Home » Categories » Computers and Electronics » Hardware » Internal Components » CDs and DVDs ArticleEditDiscuss Edit ArticleHow to Destroy a CD or DVD Four Methods:Breakage The shelf life of an unrecorded disc has been estimated at between 5 and 10 years. Well, the most common method is grinding the disc down to destroy the data, yet keep the label surface of the disc intact. Drives rated at 52x typically spin somewhere between 10,000 and 12,000 RPM (see section (5-22) to see how this is calculated). http://www.zdnet.com/article/dealing-with-piles-of-old-cdsdvds/
How To Destroy Cds In Bulk
The discs are well balanced, and spin very nicely, especially when decorated with spiral patterns (http://jclahr.com/science/Illusions/fbkspin.html). Write on it with nasty permanent markers and see if you can still read it a week later. Just kidding - it is quite the scream at the moment in countries where they still remember the Gestapo, the Stasi or the KGB. The only concern is for whether the delaminated layer gets fully pulverized or just sheared off (and stays intact).
share|improve this answer edited Oct 15 '13 at 15:08 answered Oct 15 '13 at 14:46 Journeyman Geek♦ 99.2k31185315 20 While the microwave option would work, I'd recommend against it :) Repeated rewrites will accelerate this. Factors that affect disc life expectancy include the following: type manufacturing quality condition of the disc before recording quality of the disc recording handling and maintenance environmental conditions As noted previously, Disc Eraser It's not clear how thorough this process is.
just had a failure on one that was built in the '70s - electronics were more robust in those days. Cd Shredder Subject: [7-7] Is it okay to write on or stick a label on a disc? (2006/12/10) It depends. If you have a microscope handy, put the disc in it and you can see the pits. https://www.cnet.com/forums/discussions/what-is-the-best-way-to-dispose-of-old-data-cds-596079/ Published online 2008 Nov 4.
They are popular among users because if a CD is accidentally dropped, it usually works fine afterwards, which can not be said about external hard drives. Cd Destroyer This makes them less susceptible to damage but also harder to destroy. In addition, Kodak has patented a "formazan" dye, which is light green. The chance of disc failure increases with the number of errors, but it is impossible to define the number of errors in a disc that will absolutely cause a performance problem
Keep it moving slightly so it doesn't scorch. http://www.howtogeek.com/174307/how-can-i-safely-destroy-sensitive-data-cdsdvds/ This allows the outer polycarbonate to be cut into interesting shapes without affecting the recordable area. How To Destroy Cds In Bulk The recorder got upset while writing the leadout, and ECDC (3.5c) reported some fatal errors, but the disc had already been closed enough to be readable in the two CD-ROM drives Disc Shredder It appears that 'A' can be estimated based on empirical evidence, but see http://palimpsest.stanford.edu/byorg/abbey/an/an23/an23-3/an23-308.html for some cautions about how tricky it can be to choose the right value.
Try to snap it in half. RSS ALL ARTICLES FEATURES ONLY TRIVIA Search How-To Geek How Can I Safely Destroy Sensitive Data CDs/DVDs? Since they're rather solid and may hurt when they hit, you should await a formal declaration of intra-office war before opening up with these. Keeping disks in protective sleeves or in strong boxes is the safest practice. Cd Shredding Service
Kodak has some interesting information about their "Ultima" media. The Orange Book standard was written based on the original "green" cyanine discs from Taiyo Yuden. CD Mastering Services. Some people have suggested using plastic polishes or "fine cut" paint polishes sold for removing fine scratches on automobiles.
If it can be modded, optimized, repurposed, or torn apart for fun he's interested (and probably already at the workbench taking it apart). How To Make A Cd Unreadable Try to keep a little perspective on the situation: a disc that degrades very little over 100 years is useless if it can't be read in your CD-ROM drive today. Whatever you do, don't try to peel a label off once it's on.
The old media could be stored on a shelf for emergency recovery when needed, but could also be discarded and destroyed.
What's the most safe and efficient way to get the job done? Some web pages with destructive experiments: http://www.powerlabs.org/cdexplode.htm http://www.qedata.se/e_js_n-cdrom.htm An episode of the Discovery Channel's "Mythbusters" TV show demonstrated discs flying apart near 30,000 RPM. Manufacturers tend to use this premise to estimate media longevity. Can You Shred Cds In A Paper Shredder Every music CD and movie he's ever borrowed from me got returned 100% unreadable.
M. Since the information is written in a spiral, perpendicular scratches from the hole outward (diameter or radius) are less effective. I haven't seen a controlled double-blind study that reached this conclusion, but there is anecdotal evidence to suggest that the colored polycarbonate causes the discs to sound different.) Subject: [7-25] My Cheapest of all mediums One of the benefits of using either CD or DVD for data storing is their cheap price.
Get geeky trivia, fun facts, and much more. Keep data backups in safest online storage.Good Backup PlanMost effective data backup plan is suited for data structure, updates and real life risks. There are four factors to consider: Does it work with your recorder? They are an interesting curiosity, and a cute gift when placed in a miniature jewel case, but little more.
These haven't yet fallen into common usage. As history has shown, the cost of data storing can only get cheaper. Combining a microwaved CD-R with a tesla coil produces interesting results. I transferred to remote data backup and found many offers as well as effortless remote backup provider makes things more organized.
just enough to melt the top layer so that the laser cannot read it properly. Info 4. There's no "best" kind, other than what works the best for you. For that last option, it looks like this should do the trick: http://youtu.be/0yNAbHKF8pY share|improve this answer answered Oct 16 '13 at 3:55 Iszi 6,2052976132 1 +1 The tip on the
Many CD recording programs will tell you the exact number of 2K sectors available on the CD. Using them is not as straightforward as could be hoped. Breaking them is dangerous, pieces could fly fast and may cause harm. If you hold the disc in front of a light, you may discover that your "black" disc is actually very dark red.
Each additional session requires 4500 for the lead-in and 2250 for the lead-out, for a total of 6750 (13.5MB, or 1.5 minutes).