Disc not readable

Just received the error message:" ...disc you inserted was not readable by this computer." This is a 64gb sdxc from Nikon d7000. My Intel Mac is running 10.5.8 with plenty of memory. It doesn't seem to want to follow the usual Disc Utility approach, so I am at a loss as to how to handle this. Any help would be greatly appreciated.

What are you inserting it in to try to read it?
You may need an sdxc compatiple card reader to read it...
http://eshop.macsales.com/item/Other%20World%20Computing/USB268READ/
Does the Camera have a USB hookup & have you tried Image Capture with a USB hookup?

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Disc Burner. Why are some files not readable or writeable?

Hello,
I am trying to backup my friends computer files on a beige G3 (233 MHz). I am burning about 6 DVDs of AIF music files. Most of the files are about 30 - 40 Megs in size. Often I receive error messages on particular files that read:
"The operation cannot be completed because some data cannot be read or written.
(Error code - 36)"
Followed by the choices: "Stop" or "Continue".
I have a bad feeling that my startup disk is too small but I am not sure.
Most of the files work fine. However some of the files cause disc burner to not be able to use them in the disc image before I burn. Why would this be?
Here are the specifications:
Computer: beige G3 with two hard drives (one SCSI and one ATA hard drive) and a Pioneer DVR-110D DVD writer which is Apple supported (Apple system profiler indicates Apple supported on this DVD writer). My blank DVD disks are Sony Vermatim DVD-R (1 - 16x speed support). Although I think my beige G3 only writes them at about 2 or 4x.
I am using OS 10.1.5. My startup disk which has OS 10.1.5 in it is a 4 GIG SCSI disk. Is this big enough for a startup disk (for creating 4.5 GIG DVDs)? My files are on the second hard drive which is a 40 GIG ATA disk.
I have a bad feeling that my OSX startup drive is too small for disk burning - it is only 4 GIGs in total and OSX Disc burner (Disc copy) is first making a disk image on my startup volume before it burns it. Perhaps that disk image is too large for the startup volume. Is there any way I could ask OSX to put this disk image on the second larger hard drive instead (not the startup drive?).
Here is my process (I hope I am doing this right - I am new at this):
1. I first insert a blank DVD-R
2. A message pops up asking my if I would like to create a blank disc image for this disk (I think this is the typical Disk Copy utility window. I say "yes" and give it a name and choose the "DVD-R or DVD-RAM" option. (I am not sure if there are other important settings to choose here or better settings to use but I guessed the other options that seemed obvious. A blank disk image is created with an icon that looks like a DVD disk.
3. Then I drag my chosen files to this blank disc image. It takes about 30 minutes to copy over. Thats when I receive the error message that some files couldn't be "read or written". The other files work fine but it would be nice if they all worked.
Why would some files not be readable or writeable?
4. Then I choose file/burn in the top menu and the DVD is created. This takes another 20 - 30 minutes. At the very end of the process another message pops up saying:
"Sorry the operation could not be completed because an unexpected error occured (error code -28)" Followed by an "OK" button.
However all the files that made it onto the final DVD are fine - its just that its not all of the ones I originally chose in the first step when dragging to create the disk image.
Am I doing this the right way?
Why are some files not "readable or writeable" as it indicates in the error message?
Is my 4 GIG startup disk too small for this? or are the music files possibly corrupt? or could there be some other possible problem?
Thanks

To follow up, I have some good news. After following your advice Kappy, it now works very well Thanks! Instead of using the 4 GIG volume for the OS, I am now using an 8 GIG partition on an 80 GIG drive. So now the OS has some room to operate. No disk errors occured on my first DVD
Now there was one problem. The second DVD burned gave me an error. I am not sure why but I am going to guess that because I had to installed the OS onto an 8 GIG partition maybe the OS needs to be rebooted in between disk burns because although 8 GIGs is certainly greater than the 4 GIGs I gave it last time, it still isn't a lot of space - maybe just enough to do one DVD at a time. Thats only a guess. So I rebooted to see if that clears the system out ready for the next DVD and I am trying to burn the second DVD again. If I remember I will report back. In any case, yes, this seems to be working. I hope this second DVD burns well too.
Thanks Kappy

I am getting the message "the disc you inserted was not readable by this computer" when I plug in a verizon air card into my macbook air. It also does not show up as a device on my desktop. However, I select "ignore" and am still able to connect.

Whenever I insert my verizon air card into my MBA, I get the message "the disc you inserted was not readable by the computer", with the option to either ignore or eject. I select ignore, and am able to connect to the internet, but don't know why this happens. Also, the air card is not showing up as a peripheral on my desk top. Any ideas why this might be happening and how to fix it?

When I unplugged (power) and plugged in again to restart it, yes, I heard it spin and click. Not since then though. I assumed it went to sleep and since the computers don't recognize it they won't wake it.
If I need to replace it can the data on it be recovered?

My external LaCie drive gets an error message "the disc you inserted was not readable by this computer." The only options offered are "ignore" or "eject" Disk Utility sees the disc but does not give a repair option. What can I do?

When I plug in my external LaCie drive I get an error message "the disc you inserted was not readable by this computer."
The only options offered are "ignore" or "eject"
Disk Utility sees the disc but does not give a repair option.
What can I do?

The good thing about mac-centric resellers such as OWC, is they have people on staff that can answer questions without you buying things first. They also have how-to information, and instructions are included in many of their products. I saw a link to watch a DIY video in one of their pages; an example of a RAID (with its own power supply) is shown on their drives page. Also a few in there, with no power supplies, for less money.
If I were looking to backup and perhaps also have a partition for a system clone, I'd consider something like one of these: http://eshop.macsales.com/shop/firewire/1394/USB/EliteAL/eSATA_FW800_FW400_USB
Some ideas on the RAID backup methods appear in google search, some of the pages are ideas and concepts; and the better ones also warn about using RAID for the only backup plan.
Oh, OWC has live chat. Haven't tried it, nor have I bought anything from them. I have what appears to be two products from them, but have not used either. One is in a box as-new, but has only USB2.0 ports & my Macs needed FW400/800. It has been said their RAM is a good way to upgrade, too. But I can't confirm!
A 'RAID-ready' unit for backup may be more versatile for just that, but I have not checked into these details. I use single HDDs in powered enclosures, and usually manually make backup clones to FW drives, of bootable OS X systems. Some of the OWC raid-ready use eSATA ports so that may not be viable for a computer without them.
The unused in-box external drive I have is like the base model in the link above. However mine is USB2.0 (maybe) and won't boot my older Macs due to hardware variance; and my preference would be for FireWire options, these models do offer that. But the one I have does not. Dual 500GB HDDs, and they could be used in tandem as a RAID. That would be a choice set up in software. I'm not sure and not interested enough to read up just now.
My backup method is not automatic, or a moving backup plan, if I don't get a move-on and make full system clones. I do make copies of photos and documents the manual way, to USB external drives; and occasionally backup to DVD or CD media. And USB flash, that helps to move files between computers without need to use file sharing via wi-fi. {Like Why fly? Walking is better exercise unless one is a bird. Squawk!}
https://www.google.com/#q=raid+backup+mac
Depending on the ports in your Mac, you may be able to use other cables to attach between a backup or externally enclosed hard disk drive with multiple partition and bootable clone in one of them. Not sure about the Thunderbolt, and where that is the main port, adapters are required to access other devices, as allowed.
Anyway, I am going on and on, yet not really saying anything.
My ideas would not be all that interesting to follow as a backup
plan when matching available newer hardware to task, but you
can get some into better ideas if you are not in a rush. Get a
good setup and then look into more an betterer stuff.
Good luck & happy computing!

HT4718 I have an external hard drive that I used as Time Machine Backup. I have not used it for a while and now, when I plug it in computer says: This disc is not readable. I want to recover the backups and not erase and reformat the disc. Thank you in

I have an external hard drive that I have used as Time Machine backup, but not for a while. Now when I plug it in, computer says this disc is not readable.
I want to keep the backups on it and not erase and start over.
Thank you in advance.
Gregor

It sounds like something went wrong with the drive. Did you drop it? How long has it been sitting around unused?

"The disc you inserted is not readable by this computer" message.

I get the following desktop message upon start up, "The disc you inserted is not readable by this computer."
There is no disc in the optical drive but there is an external 2TB Western Digital drive connected by Firewire that I use for Time Machine. I've used Disk Utiliity to check that and the internal drive and there are no problems indicated with either. I've also used ClamXav to scan for viruses and none are found. When I disconnect the WD drive and start up there is no message. Time Machine continues to back up and I can access that data. The only noticeable performance related issues are that the computer seems to operate much slower than before and I recently had problems with crashes and slowness while working on an iMovie project. (I'm using v10.0.3 and all other projects were completed with earlier versions.)
This is a 2.66 GHz Intel Core 2 Duo desktop with 4GB 1067 MHz DDR 3 memory.
Any thoughts/suggestions?

Hi Chuck,
No luck. I did not originallly install the WD software (I assume that's the "utility" you referred to) and the only way I know to do that now is to disconnect the drive, restart the computer, and reconnect the drive. Doing that brings up the WD software installation icon on the desktop. However repeated attempts at installation have all failed; it just sits there with an installation progress bar indicating progress that never ends nor requests additional installation approvals or information.
I'd like to resolve this but it's more of an annoyance than a problem. And I agree with you that it's probably not indicating an issue with the hard drive. So unless you or others have any alternative suggestions I'll just continue clicking past the warning at start up.
Thanks,
Bill

HT1379 The dvd disc is not readable in my dvd superdrive

My macbook pro retina display is less than a year old as well as the external dvd superdrive. The dvd player has worked in the past. Now, when I plug it in to the USB port and put a dvd in the slot, approimately 10 seconds later, the computer reports that the disc is not readable and gives me the option to ignore or eject.

Have you tried a different DVD disk to see if that disk has a problem?

I put in a disc to my iMac 7.1 10.6.8 and whenever I turn the machine on the error comes up it's not readable, options to ignore of eject. Then is comes back. I have burned some disks and still come back. Any simple way to fix this?

I got a new to me Imac and I inserted a disk that was not readable. Now an error comes up each time when I turn on the machine that says the inserted material is not readable, ignore or eject. Either gets it to go away. I have burned disks after that.
Any body know how to get this removed? Thank you

Thanks for the reply.
Re. the Displays setting, the Macbook display isn't recognized and mirroring isn't an available option.
I've scoured the net and the idea of replacing the PRAM battery may be something to try. I read a post by a guy with a Macbook logic board screwed up by a Firmware update, which he solved by replacing the PRAM battery, as when you disconnect it you reset the logic board.
Which capacitor?
No luck so far with talking to Apple. I will try to get hold of someone a little more tech savvy and/or in a position of authority, as it seems that the Firmware is the culprit. Obviously a million other things could go wrong with a Macbook, but given the timing here it looks like the Firmware. Firmware updates can and occasionally do screw up a computer, as most manufacturers will warn you before you apply the update: PC makers, printer makers, etc. And they probably warn you that it's all your responsibility if anything goes wrong. But re. the Apple Firmware update:
1) it came thru Software Update
2) there was no warning
3) to make things worse, there's no Firmware Restoration image that I can burn to a CD to reflash the logic board: this is the only Apple computer that doesn't have a Firmware Restoration option
I'll try to get thru to a manager and convince him/her that the firmware may have been the cause.
Do you think an authorized Apple tech might have access to some way to do a firmware restoration? Something not avaiable to mere mortals? Because if not, the only solution looks like a new logic board.

External Hard drive "not readable", does not show up in Disk Warrior either. Help me, please!

I have a 500gb G Drive Slim that is almost brand new. I accidentally pulled the cord out when it was connected, and now when I try to open it, it says "not readable by this computer." This is what I see when I go into disc utility:
I called G Drive, and they told me to download Disk Warrior 4. I did, and this is what I see when I open it:
My hard drive doesn't show up...i'm not sure if i'm doing something wrong but I just paid $100 dollars for this and I'd really like some help. I read the manual and it wasn't helpful at all.
Please help me!

Make sure it's format is Mac OS Extended (Journeled).
To check it's format, plug in the External HDD and search Disk Utility in the spotlight. Click the External HDD and go to the Partition tab. If it isn't Mac OS Extended change it and format it.
You shouldn't need any of these external applications to use it. I have one and use it like a flash drive.

External Hard Drive not Readable & Input/Output Error?

I was using my OWC 300gb external hard drive for a while and it's worked great. I had a bunch of files on it, but I recently transferred everything to another external HD I have, which worked fine, so I could erase this 300gb one. I can't remember what happened, but somehow my Macbook doesn't recognize this hard drive. I think erased everything and then unplugged it without ejecting it first. Anyways, nothing is on the the drive anymore and I get this error message:
"The disk you inserted was not readable by your computer"
This pops up when I restart my Macbook. When I try to use Disk Utility, it greys everything out on the partition and Disk Repair tabs. On the 'Erase' tab, it will allow me to select Erase, but then gives me the error:
"Input/Output error"
Does anyone know how to get my Macbook to see my drive (so I can start to partition it)? For some reason only Disk Utility acknowledges it's there, Finder won't.
Anyone have any tips of what it is or what I can try? I did try to use my OS discs booting up holding C, but that doesn't work either.

Hi there. Everyone is saying on these forums that the hard drive is failing...suck. I went and bought a new when I got input/output error and found that the new one showed the same input output error, making it impossible to partition the disk. Then the guy in the apple service center told me the new one was bad too, after having seen the code that came up related to my new scorpio 250 GB drive. Instead of sending it back, I took it out and installed the old one..however this time with a slihtly more of pressure on the tape holding down the hard drive cable between the hard drive and the circuit board. Amazingly, this time it didn't even show any hard drive at all! Then I understood what was wrong. It was exactly what was indicated an "input/output errror"! ..the cable was broken. I bought a new cable, well the Powerbookmedic sold it as new but it was an old working one that arrived. Immediately, after change of cable the old hard drive and now also the new 250 GB works perfectly! I remember that some interesting symptoms prior to all hard drive problems appeared, such as not being able to start up properly, strange blue screens, flipping question marks etc. I remember that shaking the comp occasionally worked to get it going. No wonder, shaking occasionally made it work and i believe the damaged cable maybe changed position and started conducting. The cable is very sensitive and probably should not be taped down so hard as the first service center guy at apple had done with mine when he fixed it the comp a few years ago. Polymers/plastics bent heavily become fragile/brittle with time and are specially sensitive under pressure/bent. Note that my old damaged cable still conducted and showed the hard drives but didn't work fully. I hope this will help someone, it took me 2 month to figure out..

External Hardrive not "readable" by my computer anymore....

So the other day my Samsun 200gig external hardrive was working..and the next thing you know it...the drive becomes "not readable by your computer" AGH...how frustrating. The Utility Disc also says that there are errors when trying to repair the disc.
These were the errors: The underlying task reported failure on exit.
Repair error: could not read boot block.
I have so much crap on my external drive..and I bought it new in Japan 5 months ago! AHHH..help! Thanks!!
Mac Book Mac OS X (10.4.8)

Hi,
I had a similar problem and it responded to several different approaches.
1. Make sure all is up to date in software update
2. Connect to different port
3. Vary the connection setup, start up with ext HD attached and turned on.
4. Do the opposite of 3
5. You might zap the pram( info in your booklet)
I hope perhaps that some of these might work, good luck
Slán
Dave

"The disk you inserted was not readable by this computer." Audio CD with Super Drive.

Macbook Pro Retina 10.9.4
When I insert any audio cd an error message comes up- "The disk you inserted was not readable by this computer."
These are the same audio CDs that a month ago worked with the same drive and same computer.
Data DVDs work.

   Reset SMC.     http://support.apple.com/kb/HT3964
   Choose the method for:
   "Resetting SMC on portables with a battery you should not remove on your own".
   Specific Trouble shooting > Doesn’t accept discs
   Apple Computers: Troubleshooting the slot-loading SuperDrive
   http://support.apple.com/kb/HT2801?viewlocale=en_US

"The disk you inserted was not readable by this computer". how to solve this problem?

"The disk you inserted was not readable by this computer." this message apear on my imac any idea how to solve this problem?

It means the disc is not in a format your computer can read or it is not formatted at all. You can remove the disc or you can attempt to format the disc. If the disc has data on it, then I would not format it.

Western Digital 320gb "not readable" by Mac OS

I plug my Western Digital My Passport 320gb drive into my eMac, and I get the message "the disc you inserted is not readable by this computer."
It works fine on Windows XP and my Eee PC 701 (running the default Xandros OS.)
Can anyone help? Thanks in advance.

It's FAT32, I assume that's what you meant.
It appears in Disk Utility before I get the error message. The Get Info box says:
Name : WD 3200BMV External Media
Type : Disk
Disk Identifier : disk1
Media Name : WD 3200BMV External Media
Media Type : Generic
Connection Bus : USB
Connection Type : External
USB Serial Number : 57442D575845333039553038363036
Writable : Yes
Ejectable : Yes
Mac OS 9 Drivers Installed : No
Location : External
Total Capacity : 298.1 GB (320,072,933,376 Bytes)
S.M.A.R.T. Status : Not Supported
Disk Number : 1
Partition Number : 0
Not sure what I need to do now. Thanks very much for the reply.

When I insert my Dvd-R it says The disk you inserted was not readable by this computer.Why is this happening ???

When I insert my Dvd-R cd it saids "The disk you inserted was not readable by this computer." Please help
thanks

This is a blank disc? A disc you burned? Burned discs have a relatively high failure rate if you buy cheap DVDs. I bought some Dynex ones once and about one in every four fails.
Have you tried other DVDs to check if it is a drive issue?

Disc not readable

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