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| Thread ID: 76543 | 2007-02-04 14:11:00 | DVD Drive and CD die in Suicide/Murder. | MistyCat (11583) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 522582 | 2007-02-04 14:11:00 | The participants: Samsung DVD RW - About a week out of 1 year Warranty. Cheapo Transonic CD - Age unknown. The crime scene: ComputerFuture assembled computer, 1 year old, running Windows XP. Witness (a hardened GrandPaparazzo) reports a loud bang from the computer while copying more photo images of his Grandkids from CD to hard drive than the human mind can comfortably comprehend. On opening the Drive drawer the dismembered corpse of the CD was revealed, in three large pieces with a further large fragment missing. On disassembly of the Drive the final fragment was discovered and removed along with various scraps of the CD's surface coating. Also discovered amidst the debris was the laser lens. Careful Crime Scene Investigation could not reveal if: a. The CD had suicided at 300 rpm, ripping the innocent lens from the mounting in its final convulsions. b. The lens had leapt from its mounting in the hope of a merry-go-round ride not noticing the lack of head clearance, and in becoming wedged had abruptly stopped the CD from spinning causing the grisly dismemberment. Who's to blame? I can't tell. Why does it matter? If the CD was the culprit, the owner will bravely smile through his tears and accept the crushing loss of his 65 cent disk. (The 5000 or so photo images recording those precious hours of his Grandkids' lives between lunchtime and naptime on Thursday (or possibly longer) are safely stored on another computer. And another CD. And a bulk Data DVD. And probably in the email Inboxes of many, many relatives.) If the Drive was to blame, then armed with a righteous sense of Justice, a Warranty that's only a week or so out of date, and a firm intention of somehow distorting the facts so I can blame MicroSoft, I shall return the Drive to Computer Future and implore them to replace it under the Warranty (or at least glue the lens back in for me.) And so I arrive (at last!) at my question. Has anyone experienced the lens of an Optical Drive falling out of its mounting? Cheers, MistyCat |
MistyCat (11583) | ||
| 522583 | 2007-02-04 15:37:00 | Comiserations.:groan: I find both scenarios hard to believe, though I am not doubting your account, they seem to unlikly to be credible. Be that as it may, the disc would almost certainly have shown some sign of damage -a crack, or delamination- before exploding!:eek: | Vince (406) | ||
| 522584 | 2007-02-04 15:38:00 | cd's dont usually fall apart unless they have a crack in em.......the laser lens woulda succumed to the assault and battery of a high speed attack from the bits of cd almost certainly.........so it's most likely the fault of the cd disintegrating and taking out the internal parts of the cd drive......i'd doubt you'd have any luck tryin to get that sorted under warranty...... | drcspy (146) | ||
| 522585 | 2007-02-04 16:26:00 | Vince and drcspy, thanks for that. It's certainly possible that the CD had an existing crack that wasn't noticed by the owner before he put the CD in the machine. I guess I'd rather be able to blame it on the Drive so I have at least a starting point for perhaps a token gesture of $20 off the price of a replacement, but I agree that a cracked disk is the most likely cause. Cheers, MistyCat |
MistyCat (11583) | ||
| 522586 | 2007-02-04 19:33:00 | You're all surprised? I've seen this lots of times - including with commercial CDs. A commercial game had a crack in it? From what I have observed its always the crap brand optical drives that it happens too. |
pctek (84) | ||
| 522587 | 2007-02-04 19:34:00 | 300rpm? Try 10,000! A 52x CD drive can attain this speed at the outer edge while transferring at ~7.8MB/s. A disk with a fairly small flaw can self-destruct at this speed; I've seen the results for myself (there were a LOT more that 4 pieces as a result of that mishap, but fortunately no lens damage). The MythBusters crew had a hard time replicating this with a CD mechanism, but mounted to an angle grinder via a modified mount did it pretty successfully! See en.wikipedia.org |
MushHead (10626) | ||
| 522588 | 2007-02-04 23:27:00 | pctek - No, I'm not surprised at all at a breaking disk. I've deliberately broken many myself over the years and the surprizing thing is the difference in flexibility among the brands. Some won't break but can be "torn" before coming apart. MushHead - You're quite right. Just a Senior Moment on my part. Thanks for the link. Cheers, MistyCat |
MistyCat (11583) | ||
| 522589 | 2007-02-05 00:15:00 | You should at least email your first post to Computer Future, give them a laugh, they may come up with something for you. | Rob99 (151) | ||
| 522590 | 2007-02-05 01:48:00 | Good thinking, Rob99! Certainly worth a try. I'm waiting for the owner to find his Warranty or some other proof of purchase date before I approach Computer Future, but I'll try an email while I'm waiting. Cheers, MistyCat |
MistyCat (11583) | ||
| 522591 | 2007-02-05 03:18:00 | 300rpm? Try 10,000! A 52x CD drive can attain this speed at the outer edge while transferring at ~7.8MB/s. A disk with a fairly small flaw can self-destruct at this speed; I've seen the results for myself (there were a LOT more that 4 pieces as a result of that mishap, but fortunately no lens damage). The MythBusters crew had a hard time replicating this with a CD mechanism, but mounted to an angle grinder via a modified mount did it pretty successfully! See en.wikipedia.org RPM is RPM. Whatever RPM the inside of the cd is doing, the outside is doing the same. Don't confuse that with velocity. |
wotz (335) | ||
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