This file has been damaged by a disk error

I am getting this error message from Photoshop CS on one PSD file on my internal C drive. The backup done a couple hours later gives the same error. I've never had any other problems with this disk in four years. I've opened a few dozen other PSD files saved around the same time or later without problems. Two questions:

1) Any suggestions on what to do about this?

2) Is there any way to get Photoshop to verify that it has saved a file correctly, or would verification require saving at least two copies of the document and comparing them with some other program?

"Warren Sarle" wrote in message

I am getting this error message from Photoshop CS on one PSD file on my internal C drive. The backup done a couple hours later gives the same error. I've never had any other problems with this disk in four years. I've opened a few dozen other PSD files saved around the same time or later without problems. Two questions:

1) Any suggestions on what to do about this?

Scan the disk for errors.

2) Is there any way to get Photoshop to verify that it has saved a file correctly, or would verification require saving at least two copies of the document and comparing them with some other program?

You have a disk problem. Photoshop may well have sent the correct information to the driver, but the disk didn't (couldn't) save it correctly. Also, as the backup merely saved the file, it also is defective. Jim

"Jim" wrote in message

"Warren Sarle" wrote in message

1) Any suggestions on what to do about this?

Scan the disk for errors.

I should have mentioned that. No errors were found.

On Mon, 02 Oct 2006 23:36:53 GMT, "Warren Sarle" wrote:

I am getting this error message from Photoshop CS on one PSD file on my internal C drive. The backup done a couple hours later gives the same error. I've never had any other problems with this disk in four years. I've opened a few dozen other PSD files saved around the same time or later without problems. Two questions:

1) Any suggestions on what to do about this?

2) Is there any way to get Photoshop to verify that it has saved a file correctly, or would verification require saving at least two copies of the document and comparing them with some other program?

I would try opening the files in some other graphics program other than an Adobe program that can handle PSD files. If they open try re saving them under a different name and then see how those PSD files then do when using CS. It is very rare, but through the years I have run across files that Adobe programs could not open, but when I have opened, renamed and saved them in another graphics program they would open in Adobe programs.

--
FredEx

"FredEx" wrote in message

On Mon, 02 Oct 2006 23:36:53 GMT, "Warren Sarle" wrote:

I am getting this error message from Photoshop CS on one PSD file on my internal C drive. The backup done a couple hours later gives the same error.
I've never had any other problems with this disk in four years. I've opened
a few dozen other PSD files saved around the same time or later without problems. Two questions:

1) Any suggestions on what to do about this?

2) Is there any way to get Photoshop to verify that it has saved a file correctly, or would verification require saving at least two copies of the document and comparing them with some other program?

I would try opening the files in some other graphics program other than an Adobe program that can handle PSD files. If they open try re saving them under a different name and then see how those PSD files then do when using CS. It is very rare, but through the years I have run across files that Adobe programs could not open, but when I have opened, renamed and saved them in another graphics program they would open in Adobe programs.

--
FredEx

with some of my PSD files that had gotten corrupted I had better success opening and re-saving as TIFFs (can preserve layers, masks) I also tried saving them to another comp on the network
opening in PS there (make some changes and then revert) then re-save

have you scanned the disks for damage?? 4 years is very old for a hard drive on a comp with PS
my comp guy said 2 years is OLD for a hard-drive!!!

good luck

"KatWoman" wrote in message

with some of my PSD files that had gotten corrupted I had better success opening and re-saving as TIFFs (can preserve layers, masks)

That doesn't help. Neither does opening in a non-Adode program. One image layer
out of about a dozen is definitely corrupted. There's a large cyan blob in the the
middle of it, and there are numerous rectangular regions where the original image
is visible but the color is distorted in various ways.

have you scanned the disks for damage??

I've run disk checks twice, a memory check, and a cpu check. No errors. I've run Photoshop batch jobs just to open hundreds of other psd files. No errors.

I do have the original dozen RAW files, so I can recreate the image with 6 or 8
hours of work.

What I'm really concerned about is how to prevent or at least detect such errors
in the future. It may be some freak, one-in-a-quadrillion case of a cosmic ray
flipping a bit somewhere, but the experience makes me nervous.

I'm also wondering if the risk would be lower with uncompressed TIFF files. One corrupted byte in an uncompressed TIFF will probably affect just one pixel. The more the file is compressed, the more damage a corrupted byte will do.

On Wed, 18 Oct 2006 17:02:54 GMT, "Warren Sarle" wrote:

"KatWoman" wrote in message

with some of my PSD files that had gotten corrupted I had better success opening and re-saving as TIFFs (can preserve layers, masks)

That doesn't help. Neither does opening in a non-Adode program. One image layer
out of about a dozen is definitely corrupted. There's a large cyan blob in the the
middle of it, and there are numerous rectangular regions where the original image
is visible but the color is distorted in various ways.

from my experience, stick a fork in it, its done. I worked on a problematic machine for awhile, at one point, I was getting these same sorts of errors and messed up files all over the place. Finally got a new computer. Opening the damaged files on another machine, different programs, nothing ever helped.

that doesnt mean nothing WILL help. You might find something. I never did. You might want to prepare yourself....