Codec Overrun

I got this problem when downloaded standalone installer for any updater with ext .dmg It says "codec overrun" does anyone has have idea of this problem. Recently, i did download security update for my 10.4.6 but it won't run and keep pop up the same problem. If anybody has this problem face please help me. Thank you
DP 1.8 PMG5(1.5GBRAM) Mac OS X (10.4.6) FCP5, Shake

I see this update listed, have you applied it? Does it come up when you run Software Update?
-mj
[email protected]

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G5 10.5.8 Combo Update codec overrun - install fails

Hi,
I still have my first mac, a Power Mac G5, but it has been acting as a center speaker stand for some time now. A couple of years ago it started playing up, I spent hours and pounds trying to fix it, gave up and bought a shiny new iMac. So with the festive season upon us and orders to tidy up, I thought I'd have one last try at fixing it before turning it into a drinks cabinet.
As I recall, it all started to go wrong one day when I tried to download a large update to something. When I tried to install the update I got a Codec Overrun error and/or a Corrupt File message. As it stands today the machine is running a clean install of OSX 10.5.6 and I am failing to install the MacOSXUpdCombo10.5.8.dmg upgrade. I currently have 2 copies of the update.
One copy on the desktop was downloaded directly from the Apple support site. The .dmg opens and verifies OK and I can launch the MacOSXUpdCombo10.5.8.pkg. This runs through the installation sequence, past the password but finally comes up with an error message "Install Failed. The installer could not validate the contents of the 'MacOSXUpdCombo10.5.8' package. Contact the software manufacturer for assistance."
Another copy in my downloads folder, put there by the Software Updater, doesn't get that far. It comes up with "Warning,The following disk image failed to mount. Image - MacOSXUpdCombo10.5.8.dmg, Reason - codec overrun."
So far I have tried:-
Memory - run third party memory checker application (can't remember which one) and found no faults.Tried different set of memory cards
Hard disk - run all the disk check and repair utilities, re-formatted, repartitioned. Tried a different hard disk.
OSX 10.5.6 - reinstalled from original disks several times.
MacOSXUpdCombo10.5.8 - downloaded via Software Updater process and direct from Apple Support website. Downloaded via wi-fi, ethernet, different Mac, different PC. Always get the exact same file size.
Resetting the PRAM etc
New standby battery
Installing in Safe Mode
Swearing.
None of this has worked. I get some different error messages but they are all variations of "codec overrun", "corrupt file" or "Install failure"
Anyone got any other ideas? Or should I just get on with the drinks cabinet conversion?
Thanks

That message isn't a space available message. If you bring up Disk Utility, how does it say the partition is formatted, ie, partition format, write status, and partition map scheme? Assume SMART status is verified, yes?

How do I address codec overrun error to install a .dmg

I want to free up space on my hard drive so I downloaded and tried to install Singular 0.8.1 from the download link on the apple site. I receive the error "codec overrun" upon installation. Any ideas why this is occurring or suggestions how to correct would be appreciated.
G4 Mac OS X (10.3.9)

1. If you are running 10.3.9 as your profile suggests, you probably should be posting to a forum for that OS version. (This one is for Tiger, OS 10.4.x installation & setup issues.)
2. Check your free drive space. You should have at least 5-10 GB free or OS X won't run properly. Do not attempt to add applications if you have less than this much free space. Instead, manually move files to other media (such as CD's or DVD's, other drives, etc.) before proceeding.

Disk images failed to mount - codec overrun

Hi,
So after searching through the related posts I have been unable to correct my probelm, which is:
I am unable to open some .dmg files. I have tried to open three different .dmg files from a variety of sources and they all return the same error:
disk images failed to mount - codec overrun
However, I was able to update my system to 10.4.7 using the updater. This did not solve the problem. I then tried load the combo version of 10.4.7 as suggested in a different post and while it didn't load (I accidentally grabbed the powerPC version) it was able to open the .dmg and look in them.
Disk Utility is unable to attach the three that won't open. The first two Disk Utility was unable to verify or repair. The last (a cars game demo) was successfully verified but still came up with the codec overrun error when I tried to attach it. Finally I have tried removing the following two files and then restarting, to no effect.
/System/Library/Extension.kextcache
/System/Library/Caches/com.apple.kernalcaches/
I'd appreciate any help offered. A search on codec overrun was of no use. I searched for "mount failed disk images" and variations of that to find what I have already tried.
Thanks
Pete

I am havin the same problems. codec overrun
I am trying to download stuffit from their site so I can open a program for school.
I tried to download the dmg file from the apple site but was given the same error. Codec overrun
Also I attempted to get the updates from the Apple site.......same error.
So far this computer will not download much of anything without some kind of an error. Essentially this Imac is a $2000 jukebox. It does play music wonderfully.
My roommate was able to downlad easily from the same internet connection with no problem the windows version of the program from te same site.
This is a brand new out of the box iMac. 20" 1 gig 250 GB machine. First Mac for me and it is turning into a real headache.
Any help with the codec overrun would be appreciated.

Codec Overrun Warning/Error

I wanted to share my experience with you all regarding an error I was getting when attempting to mount and decompress dmg files while updating my software.
I would use the built in Update Software tool from the Apple menu... select the packages I wanted... then watch them download. Once down, they would decompress and mount. I would then get an informative error: An error has occurred, and the package might have been tampered with (something along those lines). Anyway I would then download the file directly form the Apple Support site... when I attempted to mount it, I would get a codec overrun warning.
Several calls into the Apple Support Line and I think we found the solution to this problem. The support person, who spoke with a product specialist, stated that I need to do a resinstall using archive and preserve user settings. Doing so, yielded problems with the second disk... it failed installing Garage Band Instruments... so I removed the package and did it again... this time it failed installing some items from iLife. Again, these I didn't care one bit about... so I removed all packages... and it still wanted to install all the packages, even though I told it not to install any of them. Talk about frustrating!
Another call into Apple Support suggested that I NOT select Preserve User Settings... This blew away my accounts... but preserved all my documents and the like, so there was no data lost.
Once complete with the install/upgrade/reinstall of software, I was able to download all the files from the apple support site and mount them with no problems. I then moved my user directory from the "preserved" section to my local user directory... bounced the box... life was back to normal.
This took about five calls into support and about 30 attempts to figure out what was going on with the failures.
I never did get a reason for the codec overrun error or the cause... but didn't want anyone else going through the same pain I did.
MacPro Mac OS X (10.4.8)

Thanks greatly for your help with this.
I had been unable to mount or install the last 4 months of Apple specific updates, as well as some of the other "fun" software out there (Blender, Mac for the SlingBox, etc.).
Searching the various forums here and elsewhere provided no assistance until your post.
Unfortunately, I have so far found that the system will download well again, until...it won't. At which point, I have to again save the settings and reinstall the OS, and do the same set of updates all over. Luckily (?), software other than the specific Mac system stuff seems to stay installed correctly, awaiting the reinstall of current OS files.
This has been my first experience with a Mac, and I have been very much underwhelmed. Perhaps this has been an anomaly, but when this dies, I think I will be returning to the non-Mac world.
I always did like linux!
Thanks again!
iMac Intel Mac OS X (10.4.8)

Demo download - 'codec overrun'

Upon downloading the demo I am greeted with the error message 'codec overrun' when opening the image file. I've download the file 5 times on 2 different browsers with the same result.
Obviously others have had success so what can I do to be able to open the file? Alternative download site? FTP?
Thank you.

What you probably mean is SPI (Stateful Packet Inpection) Firewall. I found this setting on my WGR614v7 Netgear router in its WAN settings:
"Disable SPI Firewall - The SPI (Stateful Packet Inpection) Firewall protects your LAN against Denial of Service attacks. This should only be disabled in special circumstances."
just disable it and restart the router, still checking whether it will resolve the codec overrun issue.

Why am I seeing 'codec overrun' when I try to mount the FF8.0 DMG?

Have just downloaded FF8.0 and tried to open the DMG. But unfortunately I've gotten the warning message that the DMG failed to mount, with the stated reason being 'codec overrun.' Can anyone help?

first try a different usb cable, remove all other usb devices, and try a different port in back on desktops if possible. if no luck see these
These errors typically occur when security software interferes with the restore and update process. FollowTroubleshooting security software issues to resolve this issue. In rare cases, these errors may be a hardware issue. If the errors persist on another computer, the device may need service.
Also, check your hosts file to verify that it's not blocking iTunes from communicating with the update server. See iTunes: Advanced iTunes Store troubleshooting—follow steps under the heading Blocked by configuration (Mac OS X / Windows) > Rebuild network information > Mac OS X > The hosts file may also be blocking the iTunes Store. If you have software used to perform unauthorized modifications to the iOS device, uninstall this software prior to editing the hosts file to prevent that software from automatically modifying the hosts file again on restart.

Verification failed! codec overrun!

So this is a brand new MacBook given to me yesterday as a Graduation present. I haven't been able to download anything (such as MSN messenger for Mac and Firefox for MAC, both of which have been downloaded from Apple website). I have tried probably fifty times. Each time I get the same error message 'verification failed' and then 'codec overrun'. I've called Apple three times today, and had to reinstall my software three times. Nothing has worked.
The Mac people don't know how to fix it.
Help anyone???

I'm getting this same error, from Firefox AND Safari. I'm using a TiPB/867MHz with a gig of RAM. I did the archive install (which mucked up my Apache2/PHP install, but that's another story), I did AppleJack.
Once I did the "downgrade" from 10.4.11 to 10.4.6, I was able to download the two Java updates (20 and 36MB - ????) but I can't download the 10.4.11 update at 186MB.
I also can't download things like Plone, iWork '08 demo, and a lot of other things. BUT I went to my Intel Macbook and the same links download fine.
I thought it was bad RAM, but I ran Techtool and everything checked out OK. Applejack didn't find any problems either.

Codec Overrun And Invalid Checksum

Over the past 2 months, I have been having issues downloading the iPhone SDK. I started attempting to download the dmg from the iPhone Dev Center from 2.2 and since the day Apple releases 3.0. I have downloaded over 30 times and every single time, I tried to mount the DMG, it is either Invalid Checksum or Codec Overrun. I tried downloading other DMGs and what strikes me was that any DMG below 1GB, seems to mount successfully. Those that are above (like the iPhone SDK), are giving errors. Even if I skip the validation part, which forces the DMG to mount successfully, I would end up failing in installation.
There are countless written cases around this when googled, and I've tried every one of them, short of a complete re-installation of Leopard. And even that, I am not sure it will work as some have written to say that they have tried but unsuccessful. From changing the router, to stopping internet sharing to disabling all firewall and security and even repairing all disk permission and clearing all cache! Majority of people have this codec overrun issue, none has actually posted a resolution. What bugs me was that even RAR files that I download gets CRC failures and I am not sure if this is related to the DMG problems.
If there are anyone out there who has this resolved, please share... you will save a lot of people with tremendous amount of hassle. If any Apple Technician is reading this, please acknowledge and rectify... this is the single most frustrating problem with Leopard. Do a google on 'Codec Overrun' and you will hit countless users expressing their frustration over this issue. I had zero problems with downloads on Tiger, but ever since Leopard, this is showing up so often and I am surprise it only exist on the Macs. I am not sure who's fault lies with such download problem, the ISP, any hardware, the software or the OS... but I am certain that this has every bit to do with the Mac OS. It doesn't explain why Tiger is perfectly ok with downloads and eversince Leopard, it's not.

Strongly suggest posting to the appropriate forum under OS X Technologies where the Unix and developers hang out.

Q7 Does Not Install - 'Codec Overrun'

Hi,
Trying to install latest version of quicktime through QuicktimeInstallerX.dmg, but get a warning message appear on the screen indicating 'disk images failed to mount.
Image: Quicktimeinstaller
Reason: Codec overrun
Have repeated exersize after shuting down computer and restarting.
Computer Specs. Powerbook G4, Processor 1.25Mhz,Memory 2GB, OSX V10.3.9
Anyone have any ideas?
Thanks in advance
Cmonkey

I would try restarting, then downloading the disk image again (sounds as though it may be corrupt) and/or try mounting it with Toast.

Disk Images Fail To Mount - Code Overrun

I'm having a problem with mounting disk images on my iBook G3 500 running OS X 10.4.8. (same problem with 10.4.6. and 10.4.7). I can only seem to mount one disk image per re-boot. After mounting one, the rest give me codec overrun errors until I restart, and then I can mount one more. I have re-installed Tiger on this computer multiple times, with the exact same problem everytime. I just recently installed a new hard drive - same problems. I'm also unable to install software updates via the built-in software update utility (bad checksum error). Any ideas?

Anyone have any ideas? I'm also having problems with programs frequently quitting when I'm right in the middle of doing something.

Digital Signature Incorrect / Coddec Overrun possible Solution please read!

Ok Ive posted this under a few topcis. I will go over my issue and I hope this will help others out there having the same issue.
First of all here is my setup:
2 PC's
1 Mac mini
1 Netgear Wireless Router WGR614V6
Ok now heres the issue which btw JUST popped up this weekend:
This happened a few times in the past but nothing serious where I would run the apple SW updater and it would find relevant updates to my computer. Then Id start to download them. The system would almost finish downloading them and then id receive the error " The digial Signature is incorrect or the software package has been tampered with since leaving apple please try again"
So i was like ok no biggie I will just download them manually more of a pain then anything but oh well.
So after downloading the installers from apple directly id double click on the DMG file only to get another error "Codec Overrun error Invalid Checksum"
So i researched that error and found that it means the download is corrupt. so I was like ***!!
So after a few days of research I found that on my model of router there is a thing called an SPI Firewall which fine tooth combs packets of info inbound to your network once its done your packets are most if not all the time F-ed up by them time it reaches the actual computer.
Luckily I ran into another Mac user on the netgear page who was having the EXACT problem I was. So I followed his solution and turned off my SPI firewall and also updated the ROM to my router and that nailed 2 birds with one stone.
It stopped the digital Sig errors as well as stopped the corrupted downloads. Ive been fully operational w/ no errors for a full day now. I will update you if the status changes but for now.. all is green!!
I understand everyone may not have a Netgear Router but you may think about removing the router temporarily for troubleshooting procedures to see if this will alleviate the issue you are having. if it does then you know the issue lies with your router and not apple which im about 95% sure thats the case.
I hope this helps alot of people since I knew how frustrating and PO'ed I was dealing with this!

I reinstalled the operating system using a Zero Level format and then installed Tiger and updated to 10.4.9. All works fine now.

How Do I Get iTunes Back On My Macbook?

I was downloading something from Acquisition this morning and my iTunes went haywire. Next thing I know my entire iTunes library was damaged and iTunes would not respond. After a number of tries, I dragged iTunes into the trash and figured I'd download a new one.
However, when I downloaded it from Apple I got a message that verification failed and then when I double-clicked the iTunes 6.0.5.dmg on my desktop I got the following message -- "the following disk images failed to mount (reason codec overrun)".
Help...Any ideas what happened and any idea how I can get back to normal?
MacBook 1.1 Mac OS X (10.4.7)

Okay... but then there's nothing there? It just says "There are no purchased movies to be downloaded" (roughly translated from Danish)...

Disk images not mounting

Here's the question: how come .dmg files downloaded from apple.com (amongst other places) won't mount?
Here's the detail: This has to be a FAQ going by Google searches. I've downloaded the Mac Firefox DMG 3 times, and the Safari DMG from apple.com once, and when I try to mount the images I get a range of different cryptic errors, including "codec overrun", "not recognized", "error -some number or other", and so on. Sometimes, I get two different errors for the Safari image.
Existing disk images on my hard drive mount fine. Today my hard disk has been playing up, with files being corrupted, keychain being broken, prefs disappearing, and so on. I boot from the Tiger DVD, run Disk Utility and Repair Disk, tells me no repairs carried out as all hunky dory. Use Disk Utility on the HD to check permissions, those are fine. Run Onyx maintenance, all is fine. I've not changed the router prefs at all, so it's not that corrupting the downloads.
All was fine until mid-afternoon today, when a number of apps (Firefox, Safari, Dreamweaver) started behaving strangely and the machine kept on hanging. On restart a number of taskbar icons became question marks, so something's being corrupted. Some downloaded PDFs became corrupted.
What I might try to do is download DMGs from my work PC, put them on a stick, and try to mount them. If the problem recurs then that would eliminate download errors.
My conclusion is that either the OS has become damaged, or the HD is physically fubar'd, or at least has some physical errors on it somewhere which DU isn't picking up. If the latter I'm screwed as I'm out of warranty and I might as well chuck the machine in the bin, so let's hope it's the OS. I could reinstall the OS (again) but a) that would be highly time-consuming as I'd also have to reinstall a shedload of apps, prefs, configs, etc, and b) if there's a physical HD error it'll do zero.
I've already spent some fruitless and frustrating hours today on diagnosis, and having done tech supp in my career I know what to look for, so this is my last throw of the dice to try to get some kind person to suggest a) a diagnosis, and b) suggestions for a cure.
Without a cure I might as well take a clawhammer to the thing and get a Linux laptop. Ok, PCs are far inferior to Macs with crappy hardware, but at least you don't lose over a thousand quid when your PC laptop fails.
Cheers
Fred Riley
Web Developer, Nottingham, UK

I was able to get a partial fix of this problem by following instructions that I found on the All Experts web site:
Regarding disk images and mounting media:
delete the following files and folders:
* /System/Library/Extensions.kextcache (file)
* /System/Library/Extensions.mkext (file)
* /System/Library/Caches/com.apple.kernelcaches (folder)
(Note that after deleting these files you need to reboot your Mac for the fix to take effect.)
All of these files and folders were date 18 Aug 2009, which is in around the timeframe when I installed the last security update for OS10.4 ppc.
I say the solution is a partial fix, because it did allow me to open some, but not all .dmg files (the problematic ones are showing a checksum error). Now I find that iTunes will not operate (yeah I know that should be another thread), but I have not used it in several weeks, prior to the last OS update.

Copying data from CD drive to HD

When trying to copy files from a CD- rom to the HD part of the data will copy and I then get the message "copy failed as part of the file "file name" could not be read or written". This happens on different discs and not always on the same file on the same disc (sometimes a file will copy and sometimes it won't).
Also, sometimes when trying to restore a disc image file using finder it attempts to verify the image and then gives the error "codec overrun".
If anyone could give me some ideas on this it would be most appreciated.

are you getting an error code -50?
If so reboot the computer and try again.

Codec Overrun

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