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Any good fixes for a scratched disk?

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Adam Munich

Mon Nov 22 2010, 11:35PM

Registered Member #2893 Joined: Tue Jun 01 2010, 09:25PM
Location: Cali-forn. i. a.
Posts: 2242

You could try novus plastic polish...

Weston

Tue Nov 23 2010, 12:22AM

Registered Member #1316 Joined: Thu Feb 14 2008, 03:35AM
Location: Cambridge, MA
Posts: 365

I just had my xbox360 scratch my black ops disk making it think its a DVD. I have had the game for less then a day

. Xbox360 is truly a crappy piece of engineering. It has problems that range from the aforementioned disk scratching to major overheating.

Arcstarter

Wed Nov 24 2010, 10:59PM

Registered Member #1225 Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253

We took the game back to Best Buy and they exchanged it, and they said they won't do it again, and that the scratched CD was my fault, but whatever, i have a working black ops.

My brother was playing a game today, and he said the controller was hot. He brought it to me, and the controller was melting. I tried to get the rechargable battery pack out, but it was melted to my controller. I finally got it out, took it outside, and it caught on fire. Thanks microshaft, you almost caught my fucking house on fire.

And, this is right as my brother started complaining that we needed a new controller because the X button and left button don't work. I can't even through flash grenades on COD D-:.

I hope North Korea targets whoever is responsible for the crappy game systems and then considers the fight over.

Conundrum

Thu Nov 25 2010, 10:05PM

Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061

heh.. did you take pictures of the flaming remote? i suspect m$ needs to recall that batch as this really should not happen even to the cheapest packs.
i think it may have shorted out internally, Li-Ion packs can do this for no reason whatsoever, and no failsafe will prevent the resulting vent-with-flame...

-A

Arcstarter

Fri Nov 26 2010, 01:42AM

Registered Member #1225 Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253

This was actually Ni-hm. The Xbox and controller work fine, so it must have been an internal short as you stated, Conundrum. I know that LiPo batteries have to be charged correctly and all kinds of other safety measures must be taken, but not Ni-hm as far as i know.

Gunboat

Fri Nov 26 2010, 01:39PM

Registered Member #338 Joined: Thu Mar 23 2006, 12:28PM
Location:
Posts: 41

I use "Brasso" it is a brass polishing compound and it works great on CD's and DVD's.It's fairly cheap and can be found at most big retailers.

Conundrum

Sat Nov 27 2010, 08:43PM

Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061

Weston wrote ...

I just had my xbox360 scratch my black ops disk making it think its a DVD. I have had the game for less then a day

. Xbox360 is truly a crappy piece of engineering. It has problems that range from the aforementioned disk scratching to major overheating.

I wouldn't put it past them to have included this little "feature" in the firmware by crashing the lens into the disk after a certain number of hours of operation, call me paranoid...
Probably a buffer overflow in the lens servo control responsible.
-A

Weston

Sat Nov 27 2010, 09:55PM

Registered Member #1316 Joined: Thu Feb 14 2008, 03:35AM
Location: Cambridge, MA
Posts: 365

Actual from what I have heard, it is because they were too cheep to put in 15 cent a piece bumpers

. Microsoft really screwed over the early adopters of the xbox360. Red ring of death, over heating, no internal wifi router, cold solder joints of the GPU, and the disk scratching problems. Compared to Sony who made the first PS3's the best quality they could. At least for a time it was easier to softmod a xbox360. but now the PS3 wins in that category too. I fixed my disk with toothpaste and brasso. But it still likes to crash after a half an hour or so.

Conundrum

Sun Nov 28 2010, 03:55PM

Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061

Weston wrote ...

Actual from what I have heard, it is because they were too cheep to put in 15 cent a piece bumpers

Yeah, but even with this most sensibly designed drives shoud not be able to scratch disks even under severe vibration.
What if the disk is slightly out of balance due to poor manufacturing and/or cheap polycarbonate with variable density? Instant head crash.
I've had drives sound so loud that the entire machine vibrates.

Methinks that it is a combination of cost cutting, poor design, even as far as failing to include the previously mentioned bumpers that most other manufacturers use, and not using software that spins the drive down in the event of a servo lock fail rather than trying to correct it by "sweeping" the lens through its range which is what probably does the damage.

On the flip side, someone should mod a broken CDROM drive with a pin for disk obliteration duty

Steve Conner

Sun Nov 28 2010, 05:52PM

Registered Member #30 Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706

Conundrum wrote ...

On the flip side, someone should mod a broken CDROM drive with a pin for disk obliteration duty

Frisbeeing them into a brick wall works for me

If the focus servo loses lock, it has to sweep the lens back and forth to regain it. The electronics have no knowledge of the lens position other than the voice coil current and the signals from the focusing photodiodes, so they can't stop it hitting the disc.

I guess the lens is just supposed to hit a physical endstop inside the mechanism before it comes in contact with the disc.

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