Exploding disc in dvd

[Daisy]

This has just occurred in Pioneer DVD 105S - manufactured May 2000 - why has this happened and what do I do about it?

Friday, 19.01.01.

This happened during normal usuage of cd Tomb Raider purchased from Staples - had been on about 1 hour - almighty bang - the disc shattered inside the slot drive.

Dealing with Pioneer at the moment who are being supportive - will let you know how it ends up.

Thanks for your support to date.

[This message has been edited by Daisy (edited 01-19-2001).]

Saturday, 27.01.01

Just to bring you uptodate - Pioneer have had DVD and disk since last Tuesday - they may be sending a replacement - when it arrives I'll let you know.

[This message has been edited by Daisy (edited 01-27-2001).]

[daveleau]

What exacty just happened?

[thekingofpain]

I saw a 52x Rodeodrive at a shop that the disk completely disintegrated in, upon furthur inspection a label was found inside, seems the user had labeled his MP3 disk with a stick on square causing an extreme out of balance situation...

[FrozenLiquidity]

You should probably take the drive back to the place you got it from and tell them about it. Some CD-ROM drives are known to do this. If the CD that was shattered was important then you should be able to contact the software company and get a replacement.

Most of the time when a drive shatters a CD, it will shatter the CD into many peices inside the drive. If you take this to the store you bought it from, they will open the drive and empty the broken CD, and most of the time, the drive will still work fine.

FrozenLiquidity

[King_Kooba_Fantastique]

Man i have never heard of something like this happening !..do you have any photos of the damage ?...how does this work (shattering of a cd)..i mean the physics of it ?.

Wow !.
KKF.

[Gomer]

Maximum PC had something about this a few weeks back with pics. When the one of the CDs let go it did a number on the drive.

There are a lot of forces involved when that drive revs up real good. Heat cycles are also a big factor. Heating and cooling cycles cause stress in the CD. Had the drive been running for a while before the DVD let go? Maybe it was running hot. A minor imperfection is all it takes.

[This message has been edited by Gomer (edited 01-18-2001).]

[thekingofpain]

Yeah MaxPC had a pic if I remember right, the drawer door was blasted, looked like a flying saucer hit it...

[King_Kooba_Fantastique]

But i mean how hot does it get in there ?..could the temp differences be so great ?.

KKF.

[Wiruz]

A cd spins with 150 RMP @ 1x, so imagine the forces at 52x... 7200 RPM..... The laser warms up the disc, and it then cools as soon as the laser is switched off.
I once had a cheap CDR in my DVD (6x/32x), and after I had used it for some hours, i took out the disc, and it was nearly transperant. After it cooled for a minute, it turned green again.
That was wierd.

There are some awesome powers in the new CD-rom drives, and if a cd is "humming" in a wrong way, it should be taken out immidiatly. A badly balanced disc could easily do alot of damage to the entire drive.

~Wiruz, The Digital Hippie

[This message has been edited by Wiruz (edited 01-19-2001).]

[Gomer]

I imagine the temperature change isn't too great... But I have pretty good cooling in my case (70 F), and my 16 speed pioneer gets them noticeably warm. I think for 40x reading, it revs up to 10,000 RPM or thereabouts. That's pretty quick. At that fast of a speed, I don't think it would take too much of an imperfection to cause a disc to let go. Heating and cooling would help to cause this imperfection to grow.