Mythbusters on the Discovery Channel recently tackled the legend of exploding CDs. The legend goes that flawed CDs that are spun to 30,000+ r.p.m. in 50+X CD-ROM drives have a tendency to explode.
Well, turns out that the legend is somewhat true. The guys from Mythbusters were able to get some CDs to explode by spinning them really, really fast on a fake CD-ROM drive powered by a router (the wood-working kind).
(Why a router? Turns out that they couldn’t get a commercial CD-ROM drive to spin as fast as it was supposed to. A 52X drive is supposed to spin at 30K r.p.m., but they couldn’t get one to spin past 20K.)
They spun these CDs (and exploded many of them) in front of an unprotected gelatin mold of a human. The damage was exceptional. The exploding CDs spun outward like ninja stars, doing considerable damage to the dummy. The best results were from CDs that they “pre-damaged” to simulate wear-and-tear, including one they microwaved.
(Remember, however, that in real-life the CD is inside the CD-ROM drive, giving you more protection than Jello-man. Although, in one expirement, the exploding CD dented and deformed the metal case, leaving creases in it.)
The most fun was when they plugged their fake CD-ROM drive-router concoction into a 220-volt outlet. They’d plug it in, and the CD would last perhaps a half a second before vaporizing in a cloud of shiny fragments.
They had a high-speed camera running during the experiments, and in super slo-mo playback, you’d often see the CD start to wobble just before detonation. It appeared that at a certain speed, the harmonics would getting the thing rattling in the drive (moving up and down, as well as round and round), and even flexing considerably. Some of them looked like pizza dough being tossed on the air. The end came very quickly after.
Now, Mythbusters are not alone in this solemn pursuit of science. This guy did something even more fun by spinning a CD up on a Dremel.
…a quick jerk at the tool and the CD slid out of the holder and contacted the carpet whilst spinning at ungodly speeds. It peeled out a bit in front of me and proceeded to make its way to the door at a very high speed. On contacting the closed door, the CD did a most unexpected thing: it first bounced back a few inches, and then, when it hit the door again, it jumped straight up the door and struck the ceiling, exploding into thousands of fragments which rained down on the entire room.
He has videos of a lot of his expirements, and they’re entertaining as all get out. Ah, good fun in the name of science.
Thanks, Deane. Made me laugh coffee up my nose reading about the guy with the Dremel!
A while back I needed to destroy a CD-R (nothing nefarious; just needed to vent on the thing in frustratioin) so I tried bending it to break it. Quite a mess. The thing shattered into several thousand pieces and cut my hand in two places. I have much respect for those things.
I'd still like to try the Dremel thing on my own to see if I can get the thing to detonate. Outside preferably.
I had a CD explode today. I was frightened as hell. I could hear the drive speeding up then the pop. When i opend the drive there were just peices everywhere.
We had one explode in a burner at work last week. http://buzz.acm.ndsu.nodak.edu/~acmco/intranet/images/mmpc02_burner.jpg
Today i had a cd in my computer cd drive (50x) and it spun really fast then popped shaking the whole computer and jammed the whole drive i had to pull it open with a paper clip and it had shattered into many many tiny pieces
I took the laptop outside by the pond yesterday and recorded some acoustic stuff. Nothing great, but the sound somehow seems more pure while recording outside. After my inspirational pondside jam session, I brought in the laptop and hooked it up to the stationary computer to transfer the files. It didn't work right away, and I had to put the Windows Installation Disk into the CD drive. The thing whurled and buzzed and then I heard a minor explosion. It sounded like someone hitting a TV screen with a baseball bat. I pried open the CD drive drawer (it wouldn't open by itself) and saw the Windows Installation CD had exploded into a million pieces! I took the computer apart, and removed the drive, took it apart and removed all the bits and pieces of CD. Seems to work OK now... it's a Samsung.
I got 'ninjed' just running a game CD. I'd only just put it in and BANG!
ME: WTF was that?
Friend: Erm... your face...
I had a couple of cut marks on the right side of my face, I'd hate to think what would've happened I if was facing the hardrive when it exploded.
Happened to me a week or so ago. It was my Red Alert 2 disc. All i heard was BANG, the cd drawer flew open an inch or so, and that was the end of the line for the drive :( Im using my ancient 24x cd rom now lol, im scared!
watch myth busters alot never saw the exploding cd but i had put my xp disk into the drive and after about 20 mins when it got to the outside of the disk and BANG and a horrible sound that i can only describe as the sound of a thick plastic cup in a lawnmower i fell out of my chair and opened the drive all that was left was 3 peices about 2 cm long the rest was almost dust
it was a 52x now im using a 20x or somthing its flippin dangerous
I too watched Myth Busters, but i never thought that this would happen to me. I was just sitting down with my buddy to play a game of Battle Field 1942- when all of the sudden, the CD reading just grew deadly silent. Then, it litterally sounded like a vehicle going from 0-60 in .5 seconds. The rest is just a blur... my BF1942 disk basically decintigrated in my Generic 58x CD rom drive. It was one of the most shocking things i've ever seen on a computer, as dust and smoke were being filtered out of the case cooling fans. I now use a modest 40x, just from fear of my life.
I couln'd beleive until I saw it. My sister had a few cuts in her face, and there were millions of tiny pices of cd everyware.
The cd was making a lot of noise
What it this!!!!!
Sonner or later somene will get hurt, specially if a "ninja cd pice" hits an eye. From now on I will use computer glasses...
Wow, I had no idea that exploding CDs were happening this often. I had never heard of it before today. A friend of mine called me to ask me about it. Her son was playing a kids game and the CDROM exploded. He's only three.. This is scary!
It has happend to me, and i thought the world was ending, a horribly bang, smoke, a yukkie smell around my computer. When i finally opened the drive, with a smll skrewdriver, there where about 15 zillion small pieces and three large, sharp edged pieces, if those would come out of the drive it would be devastating.
Response from the manufacturer : it;s impossible, while im looking at the g#dd#mn thing
My experience came last night, though it was different than the rest of those above. My CD exploded because it was caught sideways in the drive tray.
I must have dropped it in a little bit askew, not directly in the center of the tray, and it got caught and pulled on. I just heard a LOUD bang and the drawer would not open. I had to rattle the box around to get the drawer free so I could get it open to see the shards. Strangest thing that happened to me at a PC no doubt!
Discs that crack in drives are either slightly damaged before going into the drive or mis-centered on the hub. The rated speed of a drive refers to the speed of the laser writing/reading, not to the rotational speed of the disc. As a CD-ROM drive approaches 52X, the rotational speed keeps slowing down. The fastest rotational speed of a disc is approximately 10,500 rpm--and that is at the start of recording, not the end.
My computer crashed so I rebooted, during the reboot process I heard this really crunch noise. It was like someone just jumped on top of an aluminum can. To my chagrin I pryed open my 56X cd drive to find my Never winter Nights CD in 50 peices. They should pay me for my lost CD. o_O
Was installing xp pro, all quiet and then a loud thunk/crunch and deadthly silence. I couldn't open my cdrw drive, so eventually i got it a little open, and to my dismay and complete shock, there was my disc of xp pro in a million peices!!!!!! I am still lost for words as it only happened minutes ago and i have found this link luckily and nice to know I am not the first one to have this happen. Did anyone claim from microsoft about this, i had very rarely used the install disc, and had been formatting the drive previously so I know that i had put it in right (the cd). The cd rw was an asus(late model) btw. Please send me legitimate emails if you can offer advice as to why it happened or if you have been in touch already with microsoft re this occurence- it would be much appreciated. chume@xtra.co.nz - no spam pls. :-)
It happened to us yesterday while my nephew was using his 5th Grade Adventure CD-ROM. I heard a loud pop and his program froze. He was startled and couldn't get the program to work again, so I asked him to open the drive and reinsert the disc and when he did the CD fell out in shards. It jammed the drive and even after we got most of the pieces out, the drive was useless because the door would not stay closed. After reading this forum, I see we are lucky he wasn't hurt.
I had a CD explode inside the CD drive, all of the pieces stayed inside but it sounded like a gun going off inside the computer when it happened.
U mmmm....I was playing Planescape Torment and I heard a large Bang. The game must have been preloaded because I managed to finish what I was doing and save before I went to investiagte. When I pressed the button pieces of the Cd could be seen jammed inside. I removed the CDR from the computer and dumped some out. That is INSANE. How many people is it going to take before they put a warning or do something about this problem? Doesn anyone know if part warranties cover the Drive in this instance? And has anyone been paid for the CD that they lost? Just curious as I am trying to get mine paid for at the moment.
My next door neighbor called this morning asking if I knew anything about exploding cd disks. Her 3-year son was playing a brand new game on an HP Media Station when they heard a loud pop. The cd-rom had exploded and did enough damage that the computer won't boot. Thankfully, they'll be able to return the system for another since they had just purchased it less than two weeks ago. I'm not sure about the game.