JPG file corrupted
May 30, 2019 08:21:42 #
therwol wrote:
I keep purchasing cards. My choice. My used cards are kept in a safe place away from my other backups. My choice.
My cards are not my primary means of backup. My primary backups are multiple external hard drives (in triplicate). Sooner or later, I'm going to burn all of my pictures onto MDisks. 1000 year shelf life. Call me paranoid if you will.
My cards are not my primary means of backup. My primary backups are multiple external hard drives (in triplicate). Sooner or later, I'm going to burn all of my pictures onto MDisks. 1000 year shelf life. Call me paranoid if you will.
Nothing paranoid about keeping multiple copies of your data - just good data management practices. I burn critical files to MDisks as well - last time I looked, they were available in 100 GB sizes.
May 30, 2019 08:24:05 #
johnst1001a wrote:
I had a problem with one of mY CF cards. My 5dmk4 ... (show quote)
Just a question: since the CF card is faster and the raw files are typically larger, wouldn’t it make more sense to record the raw files to CF and the JPEGs to the SD?
May 30, 2019 08:45:24 #
johnst1001a
Loc: West Chester, Ohio
I never thoght of that. I usually don't multiple shots, but your what you say makes sense. I tend to have higher capacity SD cards vs CF though, but can change when I go to my grandsons soccer games. my cf card is 120 mbps, my sd is 95, so that should make a difference.
May 30, 2019 09:48:07 #
gvarner
Loc: Central Oregon Coast
nakabayashi wrote:
Some of those JPG files saved in computer hard drives become corrupted and can no longer be opened or viewed. Is there any remedy for this problem?
If they’re corrupted, nothing will recover them. Something in your operating system is corrupting them or else another program is operating on the files in the background and corrupting them. You need some professional help to determine the cause.
May 30, 2019 11:51:00 #
nakabayashi wrote:
Some of those JPG files saved in computer hard drives become corrupted and can no longer be opened or viewed. Is there any remedy for this problem?
Yes... Multiple backups!
My important files are backed up in three places, one of which is off site.
It isn't a question of WHETHER your files will be corrupted or a drive will fail. It is a question of WHEN will they become corrupted, or when will the drive fail.
May 30, 2019 13:16:55 #
compilot
Loc: ARIZONA
Many files I receive from my Daughter's cell phone will give me the same error. I found that by opening the corrupted file in Omnipage OCR, then resaving, the problem is solved. I don't know if other OCR programs do the same.
May 30, 2019 13:43:17 #
compilot wrote:
Many files I receive from my Daughter's cell phone will give me the same error. I found that by opening the corrupted file in Omnipage OCR, then resaving, the problem is solved. I don't know if other OCR programs do the same.
If your daughter has an iPhone, it's probably not saving standard JPEG files. Apple uses a new file variant called 'HEIF' — high efficiency file format. This is ON by default, but to change it on iOS 12.x, go to the Settings application. Scroll down to Camera. Open that, and click on Formats. Then change the choice to Most Compatible.
LOTS of people have this issue, and have no clue what it is, because Apple didn't tell them. If you only use Apple Photos on the Mac and iPad or iPhone, it's a feature, not a problem.
Unfortunately, JPEG is a file format that has been around far too long. But none of the formats designed to replace it have really taken hold in the marketplace. So for now, it's still the king of the Internet for photographic images.
May 30, 2019 14:35:23 #
I do a lot of archival work on historical documents and images for a family organization. I have heard that the .jpeg format is one the most fragile of the formats. And .tiff the most reliable. My oldest daughter was sitting beside me yesterday and looking at some very old family images scanned and stored in multiple locations. We found one file that had several corrupted jpeg images. I am working on re-formatting the most important images to tiff.
Also, several years ago, I had a discussion with a friend who is works for Intel and this is what I learned. Engineered life span of a memory card or stick, 10 years. The same life expectancy with a conventional DVD stored correctly. He mentioned that there are archival DVD disks available.
Since I have many "antique" black and white, negatives and prints, dating from the early 1900s, I have invested in a pigment based ink printer to make hard copies of the more treasured images and documents using acid free papers for archival storage. Why all the effort? Only time will tell.
My father 1903
Also, several years ago, I had a discussion with a friend who is works for Intel and this is what I learned. Engineered life span of a memory card or stick, 10 years. The same life expectancy with a conventional DVD stored correctly. He mentioned that there are archival DVD disks available.
Since I have many "antique" black and white, negatives and prints, dating from the early 1900s, I have invested in a pigment based ink printer to make hard copies of the more treasured images and documents using acid free papers for archival storage. Why all the effort? Only time will tell.
My father 1903
May 30, 2019 14:49:13 #
Lcfitt wrote:
I do a lot of archival work on historical document... (show quote)
M-Discs are available in several sizes. They have the longest projected life of any digital medium. The only problem is going to be finding a player for them in 100 years!
The sad fact is that digital media need to be copied to new and better storage formats as they become available.
May 30, 2019 14:54:53 #
RichLacey
Loc: Atlanta
JohnST1001:
Thanks for the outstanding idea. My camera (D850) continues to be bottlenecked on high-speed bursts by what, should be, the fastest cards out there. Buffer fills, then camera slows to a crawl of about 4fps.
RichLaceyPhotography
Thanks for the outstanding idea. My camera (D850) continues to be bottlenecked on high-speed bursts by what, should be, the fastest cards out there. Buffer fills, then camera slows to a crawl of about 4fps.
RichLaceyPhotography
May 30, 2019 15:04:45 #
As I stated previously, I have a main data drive and a backup drive to which the main drive is synced periodically. Whenever any file is deleted or replaced from or in the backup drive as a result of drive syncing operation, the affected files/folders are automatically backed up in a archive folder in the backup drive.
I have been routinely deleting the archive folder but I should have reviewed what were in the archive before deleting it. I think I have found a solution though it requires extra steps.
I have been routinely deleting the archive folder but I should have reviewed what were in the archive before deleting it. I think I have found a solution though it requires extra steps.
May 30, 2019 15:07:44 #
May 30, 2019 15:23:59 #
gvarner
Loc: Central Oregon Coast
burkphoto wrote:
If your daughter has an iPhone, it's probably not ... (show quote)
I think Apple provides the HEIF format to keep the file size down because using burst mode you can create dozens of files almost instantly. HEIF creates smaller files. I do use the Most Compatible setting in Camera.
May 30, 2019 21:16:52 #
nakabayashi wrote:
I am recycling memory card otherwise I have to kee... (show quote)
I just Put out a New Topic Regarding Lost Images on Memory Cards Yesterday, in Which I Transfered A Couple of Photo Files to A Flash Drive, & in One File my Photos from an Easter Brunch I Shot Last Month were Missing.
I Used The Free Recuva & Found the Lost Easter Photos & Put them on a Flash Drive, & I Got Advice on What Happen?
I don't Reuse my Memory Cards, I keep them for Master Copies, & Now Learning how to Transfer from the Card to the Flash Drive, Via Computer for 2nd Backup, & I Stopped Buying "Fly by Night" Unknown Digital Cards, Only Good Ones Like San Disk, PNY, Sony, & in the Past Lexar, but they Ceased Operation on Memory Cards.
I Hear the Stories on Memory Cards, on how they Wear Out After Being Reused & Thousand Times, People think these Cards Last Forever, but they Really Don't, after Erasing, Formatting & Constant Use.
I would like to Hear from Pros on Their Use of Memory Cards, & any Issues that they have had in the Future.
74 images
May 31, 2019 00:25:05 #
nakabayashi wrote:
Some of those JPG files saved in computer hard drives become corrupted and can no longer be opened or viewed. Is there any remedy for this problem?
If you back up correctly, you have not lost anything but these. Try recover-it. I've j used it with good results.... In the old days we were able to block bad sectors...... But if there are bad sectors, as cheap as hard drives are now, I'd replace the hard drive......
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