Can't write to HD, must reboot, error -50

It's happened four times in three months. Suddenly the Mac can't write to the hard disk (error -50) and I have to reboot. I have to close all open programs with errors because they can't write their configuration files. Recent email mail be lost. I can copy a file from the primary hard disk to another internal hard disk, but I can't duplicate a file on the primary hard disk.

I'm not sure this helps, as the disk is not an iDisk or WebDav, it's just the internal hard disk. Also, I did a Carbon Copy Clone yesterday and it's set to repair permissions before a clone, so permissions were corrected 24 hours before the most recent failure. That said, Disk Utility did report the following issues today:
New permissions:
./Library/ColorSync/Profiles/Displays
./Library/ColorSync/Profiles
./System/Library/Filesystems/cd9660.fs/cd9660.util
New uid:
./private/var/at/jobs.
./private/var/at/spool.
Owner and group corrected on ./private/var/log/install.log
Permissions corrected on ./private/var/log/wtmp

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Can't write to iPod disk "unknown error -69"

hi, I've had my 20GB iPod with color display for 6 months and worked beautifully until now. when I connect the unit for an update from my iTunes collection, I get a message saying that writing into the Ipod disk failed and an unknown error ocurred. I reset both the iPod an my computer twice, but it didn't work.
has anyone seen this before?
thanks
c71

Welcome to Apple Discussions, c71.
This article should help you with your Error 69:
http://docs.info.apple.com/article.html?artnum=302684
Anything else I can do for you, just repost
rjl

How can I fix my mac mini g4 1.5ghz which gets the must reboot message? what is the reason?

How can I fix my mac mini g4 1.5ghz with 2gig ram which gets the must reboot message randomlly? what is the reason? Hard disk has no errors.

Based on your description, you are having a kernel panic.
Can you post some of your crash logs? Might be a clue. See Mac OS X: How to log a kernel panic http://support.apple.com/kb/HT2546
Understanding crash logs isn’t easy and it’s hard (sometimes impossible) to decipher the cause of the problem. Take a look at Apple’s Crash Reporter document at http://developer.apple.com/technotes/tn2004/tn2123.html Also look at Tutorial: An introduction to reading Mac OS X crash reports
http://www.macfixit.com/article.php?story=20060309075929717
Kernel panics are usually caused by a hardware problem – frequently RAM, a USB device or a Firewire device. What external devices do you have connected? When trying to troubleshoot problems, disconnect all external devices except your monitor, keyboard and mouse. Do you experience the same problems?
To eliminate RAM being the problem, Look at this link: Testing RAM @ http://guides.macrumors.com/Testing_RAM Then download & use Memtest & Ramber.
Do you have an Apple Hardware Test disc (the AHT is on the Install/Restore DVD that came with your Mac)? Running the Apple Hardware Test in Loop Mode is an excellent troubleshooting step for finding intermittent hardware problems. It is especially useful when troubleshooting intermittent kernel panics. If Loop Mode is supported by the version of the Apple Hardware Test you are using, you run the Extended Test in Loop Mode by pressing Control-L before starting the test. Looping On should appear in the right window. Then click the Extended Test button.The test will run continuously until a problem is found. If a problem is found, the test will cease to loop, indicating the problem it found. If the test fails, be sure to write down the exact message associated with the failure.In some cases, RAM problems did not show up until nearly 40 loops, so give it a good run.
May be a solution on one of these links.
http://docs.info.apple.com/article.html?artnum=106227 What's a "kernel panic"? (Mac OS X)
http://www.macmaps.com/kernelpanic.html Mac OS X Kernel Panic FAQ
http://www.index-site.com/kernelpanic.html Mac OS X Kernel Panic FAQ
http://www.thexlab.com/faqs/kernelpanics.html Resolving Kernel Panics
http://www.macfixit.com/article.php?story=20060911080447777 Avoiding and eliminating Kernel panics
http://macosg.com/group/viewtopic.php?t=800 12-Step Program to Isolate Freezes and/or Kernel Panics
 Cheers, Tom

I'm unable to write/burn a CD-R (Verbatim) from a playlist after upgrading to iTunes 12.0.1.26. I get error 4000. I can however write/burn a CD from Windows Explorer and CDBurnerXP v4.5.4.5143 – which implies the device is working OK

I’m unable to write/burn a CD-R (Verbatim) from a playlist after upgrading to iTunes 12.0.1.26. I get error 4000. I can however write/burn a CD from Windows Explorer and CDBurnerXP v4.5.4.5143 – which implies the device is working OK – and only fails when I write from iTunes. The drivers are up to date
Microsoft Windows 7 x64 Business Edition Service Pack 1 (Build 7601)
Dell Inc. Latitude E6420
iTunes 12.0.1.26
QuickTime 7.7.6
FairPlay 2.7.39
Apple Application Support 3.1
iPod Updater Library 12.0
CD Driver 2.2.3.0
CD Driver DLL 2.1.3.1
Apple Mobile Device 8.0.5.6
Apple Mobile Device Driver 1.65.0.0
Bonjour 3.0.0.10 (333.10)
Gracenote SDK 3.06.0.2770
Gracenote MusicID 3.06.0.2770
Gracenote Submit 3.06.0.2770
Gracenote DSP 3.06.0.2770
iTunes Serial Number 756D13C00C3583C8
Current user is not an administrator.
The current local date and time is 2015-01-13 14:47:35.
iTunes is not running in safe mode.
WebKit accelerated compositing is enabled.
HDCP is supported.
Core Media is supported.
Video Display Information
Intel Corporation, Intel(R) HD Graphics Family
**** External Plug-ins Information ****
No external plug-ins installed.
iPodService 12.0.1.26 (x64) is currently running.
iTunesHelper 12.0.1.26 is currently running.
Apple Mobile Device service 3.3.0.0 is currently running.
**** CD/DVD Drive Tests ****
LowerFilters: SbCeCd (3.2.6.3),
UpperFilters: GEARAspiWDM (2.2.3.0),
F: HL-DT-ST DVD+-RW GU40N, Rev A103
Drive is empty.
The last failed audio CD burn had error code 4000(0x00000fa0). It happened on drive F: HL-DT-ST DVD+-RW GU40N on CDR media at speed 24X.
F: HL-DT-ST DVD+-RW GU40N, Rev A103
Audio CD in drive.
Failed Reading table of contents, error 4000.
Check the website of your computer or drive manufacturer to verify that you have the latest firmware for your CD / DVD drive.
Audio CD reading failed. Error Code: 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87.
iTunes cannot play or import music from a CD in this drive. The drive may need a firmware update. Check with the manufacturer.
Get drive speed failed. Error Code: 4000.
The last failed audio CD burn had error code 4000(0x00000fa0). It happened on drive F: HL-DT-ST DVD+-RW GU40N on CDR media at speed 24X.

Hi iTunes-1,
Welcome to the Support Communities! The error message you posted indicates a possible firmware update is needed for iTunes for Windows to work with your CD drive.
iTunes for Windows: Updating the firmware on your CD or DVD drive - Apple Support
http://support.apple.com/en-us/HT201852
Having outdated firmware can cause issues using CDs and DVDs with iTunes for Windows. Firmware is a type of software stored in a chip in hardware that can sometimes be updated.Identifying drives and firmware versions
To run CD Diagnostics, follow the steps in this document.
After following the steps to run CD Diagnostics linked above, look at section three to find out more about your optical drive(s).
Here is an example of what section three might look like:
In this example there are two drives. Drive E is a Samsung DVD-ROM drive with a model designation of SD-616 that has firmware version F000. Drive F is an NEC drive with a model designation of NR-7900A that has firmware version 1.08.Updating the firmware
If the optical drive you are using came with your computer, check with the support site for your computer for a firmware update. Typically you will need to go to the support website for the computer maker and click on a "downloads" or "updates" link, and then enter your computer model designation and operating system version to see what updates are available. Then look through the available updates for a firmware update for your optical drive. Download the updater and run it. If you need assistance applying the update, contact the maker of your computer.
If the optical drive you are using came as a separate part (was not included with a computer), check the support site for the drive maker for a firmware update. Sometimes the manufacturer is not clear in the CD Diagnostics results. In that case, you may just have to search the Internet for the drive model designation. You can usually find out who made the drive by looking through the results of such a search. Once you have identified who made your drive, go to the support website for that company. Look for a "downloads" or "updates" link, and then enter your optical drive model designation. Download the updater and run it. If you need assistance applying the update, contact the maker of the optical drive.Verifying that the firmware was updated
Run CD Diagnostics again.
Examine the CD Diagnostics results. The firmware version for the drive should be the new version.
Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products. Apple makes no representations regarding third-party website accuracy or reliability. Risks are inherent in the use of the Internet. Contact the vendor for additional information.
Last Modified: Nov 8, 2014
Also, you mentioned that you have been successful burning a CD with the Windows OS. Make sure that you have closed all software programs that can access the CD burner so that there isn't a conflict for the drive. Sometimes chaning the burn speed from "maximum" to 8x can also help in this situation.
I hope this information helps ...
- Judy

Error while relocating (Can't write file (no space)) - Help please

I have been having trouble relocating master files since upgrading to Leopard. The problem doesn't seem to affect only Aperture. I can happen when using Finder or another application to move files from one drive to another. Other types of files don't seem to be affected, just my library of image files.
The copy operation runs for a while then hangs up. The application doing the copy reports an error that that's the end. Aperture gives this error message: Error while relocating (Can’t write file (no space)). The Finder reports plenty of available space on the destination drive!
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Message was edited by: thomas80205

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Windows error msg: "Can not write to drive G: Joe's iPod"

Halfway thru the download process (1780 songs) from itunes to my ipod I get a windows error msg:
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Getting the error msg: " Can not write to drive G: Joe's ipod. All data has been lost, your computer or network may have failed."
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According to tech supt, I have:
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Have tried to reinstall version 4, but no luck.
My ipod charges fine thru the firewire cable.
Any ideas?? Thanx anyone.

Joe,
I am having the same problem, did you ever solve it, please email me at [email protected] with any help
Thanks

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When i install Flash 10, there was a error message showing "Can't write: C:\windows\system32\Macromed\Flash\Flash10e.ocx". I chose to ignore, installation can be completed but i still can't view any Flash file. I tried every steps showing in Adobe Flash Player Support Center to troubleshoot the issues, but i can't go any where. Will anyone know what's the problem and how i can install the Flash player on my laptop? I am using Windows 7 and Internet Explorer. Thanks heaps!

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Hello,
On a Mac with Creative Cloud, when I try to install any application I get this error message :
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Can't Write to Disk Error (-69)

I have windows XP, and an iPod 30gb photo. OUt of the blue it stopped copying files to the iPod and gives the message cannot write to disk with the error (-69).
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I formatted my HD and reinstalled windows
The iPod works on other computers .
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I have all my music on a USB drive that works fine, and it has been that way for months. I did not install any new software.
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[email protected]

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I had a bad file in my library (it was a podcast).
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Oct 22, 2013 11:58 PM downloaded 10.9 all well 'til I get desktop and can't enter my password, message of error, and it shuts down: reboot and error reappears"your computer restarted because of a problem. touch any key.....etc' 75-yr-old needs guid

Oct 22, 2013 11:58 PM
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Downloaded 10.9 all well 'til I get desktop and can't enter my password, message of error, and it shuts down: reboot and error reappears"your computer restarted because of a problem. touch any key.....etc'

downloaded 10.9 all well 'til I get desktop and can't enter my password, message of error, and it shuts down: reboot and error reappears"your computer restarted because of a problem. touch any key.....etc' 75-yr-old needs guidance.........thanx
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Can't write to HD, must reboot, error -50

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