| Author | Message | ||
     Keith Taylor |
I have some corrupted jpg photo files and no matter which software I try and access them with I get an error saying things like "invalid header" or "can't determine type". Any ideas? So far I have run into many ideas for data recovery but this is not a case of recovery. All my files (which are on my hard drive) are still in one piece just unreadable because of some unknown corruption. Would appreciate any help you could offer. Keith | ||
| Stefan Fleischmann (Admin) |
If you know the .jpg file format, you could try examining and repairing the files manually using WinHex, but as this may very well be related to logical file system errors, a good portion of luck (that missing file fragments still exist), a lot of time, and low-level system knowledge is required. But this is not something that automatic data recovery software could do. Maybe a dedicated data recovery service can help. | ||
| Keith Taylor |
Thanks for your suggestion Stefan. I tried WinHex but had no luck although I wouldn't be suprised if the reason I failed was "user error". Don't suppose you know of a dedicated data recovery service to whom I could send a sample file? Would be best if they were in the US, UK or Finland (where I live). Actually Germany would be okay to - perhaps you know the market there best. Don't want to burden you but I thought I would ask anyway. Thanks Keith | ||
| Stefan Fleischmann (Admin) |
You will find a list of data recovery services in the WinHex knowledge base (see left frame of this forum). | ||
| Brian |
Hi Keith I saw your message, and as I am presently looking at the jpeg file format,I would be interested in examining an example of your files. If nothing else I would hope to determine whether any valid jpeg structures are present and get some idea of the extent of the corruption for you. If you are interested please leave a message. Regards Brian | ||
| Keith Taylor |
Stefan Sorry, I hadn't delved far enough to have seen the Knowledge Base. Keith ######## Brian, I have sent you a couple of files - would be really interesting to see what you make of them. Keith | ||
| Graham J Hadlington |
Hi I have just used Davory to try and undelete a mass of filese I had on drive D. I used the ultimate boot disk to format drive C but it formatted the bothy drives and made one big C drive. Davory recovered over a thousand files but they all have the # in front of their names. I cannot possibly remember the names, so I was hoping someone could throw some light upon this. Very much obliged for any help. Graham J. Hadlington. | ||
| Stefan Fleischmann (Admin) |
If there were originally only short filenames (8+3 format), and the files were deleted, the first character unfortunately cannot be recovered. However, I am surprised anyway since according to your description the files were not actually deleted, only the drive was formatted. | ||
| Guy Impallomeni |
I have recovered 7.5GB of data from a formatted hard drive. 95% of the data is now corrupt. All data that was not corrupt retained the original file name. All data that is corrupt has the "#" sign in front of the file name, and replacing the file names are a bunch of numbers. Why did this happen and how can I fix this? | ||
| Stefan Fleischmann (Admin) |
The # character is used as the first character in a filename if deleted files are recovered where the first original character is not available any more (e.g. if the file did not have a long filename). When there are traces of more than just one copy of the same file, WinHex also recovers these copies, thereby maximizing the chance that at least one copy is the latest and an uncorrupt one. These copies get a number in front of the filenames. You can delete the files with a number if you don't need them and you can also delete the files with the # character (that were previously deleted as well). | ||
| Richard |
Hi excellent stuff guys. Right I did my parents a favour after they had a dream holiday in the states and transferred their digital photographs (Jpeg) onto a CD-Rom. The problem being that half are great but the other half (different memory stick) are present but produce the error report 'can't determine type' what do I do? Any advice gratefully recieved. | ||
| Stefan Fleischmann (Admin) |
You could try a different image viewing software, or you could try to find out the difference between the two file types with WinHex. | ||
| J Guzman (Jguzman) |
Hi there, I don't know if anyone will be able to help me with this: I have a lot of JPG files that I am unable to open after transfering them from a memory stick that has now being emptied. I get an error message saying that "the jpeg marker segment length is too short". My knowledge of JPG is close to non-existent. I tried using WinHex but I could not find my way around it. If anyone can shed any light on this, I'll appreciate it. Thanks! | ||
| Stefan Fleischmann (Admin) |
You could try running File Recovery by Type (menu command in WinHex and Davory) on the memory stick, but I am not whether this will help. WinHex cannot automatically repair corrupt files. | ||
| Steve |
Hi all, Recently my computer was attacked by W95.Dupator Virus. I managed to clean my hard disk, but the the virus left all my Portable Executable Files corrupted, ie .doc, .xls, .jpg ect. All of these files fail to open, also they show files size as 0 bytes. I have very valuable information in all these file which i need to access asap. Can anyone please advise me with a solution? Thanks.. | ||
| Stefan Fleischmann (Admin) |
That the virus has reduced the file size to zero is very bad. However, you could try the recovery method "File Recovery by Type" in WinHex or Davory, which does not rely on correct file system records on the files, but instead relies on files being stored in a non-fragmented way (in contiguous clusters). This recovery method can look for characteristic file signatures of MS Office and JPEG files. Hopefully the virus did not actually overwrite the files' contents. In the case of MS Office files, this recovery method cannot differentiate between .doc and .xls files, so after these files have been recovered, you would have find out by renaming the extension if they can be opened by MS Word or MS Excel. BTW, .doc, .xls, and .jpg are no PE (portable executable) files. | ||
| S |
Hi My (full) sony memory stick in my digital camera seems to have got corrupted (people seem to think it could be due to my mobile phone...?), anyway the pictures are all there I think, as the files are all listed and are about 500kb big. I can't open any of them as it just says can't determine type.. Can I unscramble them? I can't copy them to my hard drive either as they just won't paste. | ||
| S |
I just tried Davory and it can find all the files but they all are listed in the output file as 0KB and won't open. I guess this is because they are all 500kb + Would the full version be able to fix this? S | ||
| Stefan Fleischmann (Admin) |
If Davory recovers the files at a size of 0 KB, the full version would do the same. Not sure why this is so. You tried File Recovery by Name? Then I recomend you also try File Recovery by Type. | ||
| Gerard Gouldson |
Hi - I had a hard disk going bad, so I wrote all of my data files and photos to multiple CD-R's. When I installed my new hard drive with Windows XP on it, I copied all of my data back onto my new drive. My photos were in folders named by month e.g. 07-2002. Some of my folders are OK (every photo is OK), but other folders are completely bad - I get this error from Photoshop 6.0: "Could not open c:\BlaBla\dscn0381.jpg because a JPEG marker segment length is too short (the file may be truncated or incomplete)". The file sizes all look appropriate. Does any one have any idea? Could I send one photo to anyone to check? Then I could buy the appropriate software myself to recover them. Thanks for any help. | ||
| Stefan Fleischmann (Admin) |
Please do not deliberately post the same message twice. For a reply, please see my very first posting above. | ||
| fabahser |
when i open the jpg and gif file they give error "an invalid jpg marker" or "file format module can not parser the file" | ||
| Carol Kirkup |
Whilst copying jpgs from a compact flash card via an external card reader an error message occured and appears to have corrupted the files on the card. We were able to view the images prior to copying, but during the process something went very wrong, now we can't get to any of the files. They were of a wedding and we're devastated - can anyone help in fairly layman's terms please on how we can recover the images?? We did notice several "blank" files and we suspect that these had corrupted information that crashed the process. The first 21 files copied OK, but then an error message appeared, something along the lines of the path could not be detected. When we tried to do the process again it couldn't read any information on the card, and when put in the camera it stated CF error. I've used a Canon D30 for years and had no problem, however in using a Canon 300D recently it's happened twice. Any clues anybody? Thanks in advance for assistance. | ||
| Stefan Fleischmann (Admin) |
Please follow these instructions. | ||
| Rav |
Hi, I'm also facing problem opening the jpeg files with file size varying from 900 kb to 1.5 MB. The error is "can't determine type". Can somebody help me. These are photographs of my son's birth. Thanks | ||
| Anonymous |
Hi all, I've got a problem too. I've recovered files from my winchester ( my father formatted it). I have all the files, expect some jpg files. Some jpg files work well, with other jpf files I get this message in IrfanView: "Can't read file header! Unknown file format!" Thx in advance! E-mail: Tibor_Nyers@hotmail.com | ||
| Edward |
hi! I would appreciate your help. Needed to format secondary HD and burned a CD with image files , mostly JPGs. Most CDs worked, but one of the CDs gives me errors - when trying to open files I get : Cant Read the Header. Unknown File Format. I formatted the drive but its still near empty... Any suggestions ??? edward_b_to@hotmail.com thank you | ||
| Julana Briones |
I have some corrupted .txt files when I open them I get a bunch of weird symbols like this: Æ1n ±¤ also have some corrupted jpg files that when I open in Paintshop pro I get an error saying "this is not a valid jpeg" is there anyway to fix these issues? | ||
| Stefan Fleischmann (Admin) |
Maybe the real data is still floating around somewhere else on the disk. You could use the recovery method "File Recovery by Type" in Davory or WinHex to scan for your JPEG files. You could search the disk for the lost text files manually with the Find Text command in WinHex if you remember some text fragments precisely. | ||
| mark |
Hi, Please could someone help! I have around 4500 files that have suddenly become '0kb'. They are all types of files mailnly jpegs but also some text and mp3 files. The files are 'there' but have no previews and are of no size?! I have tried about 6 different recovery programmes and have also tried going back to a point when they were ok using the 'system resore' but still no luck. Any help would be greatfully appreciated as there are pictures and videos of my son which are very valuable in a personal sense. Many thanks Mark | ||
| Stefan Fleischmann (Admin) |
Maybe the real data still floats around somewhere else on the disk. You could use the recovery method "File Recovery by Type" in Davory or WinHex to scan for your JPEG files. You could search the disk for the lost text files manually with the Find Text command in WinHex if you remember some text fragments precisely. | ||
| Zach Friedland |
Another clue... This is happening to me when I transfer vertical images from my Canon SD300 to my computer, and then try to open them on another computer (my laptop). I suspect that the jpg header has some information from the camera telling the OS that the image should be automatically rotated. The laptop doesn't seem to have the right drivers to allow it to read this header so it says Can't determine type. This could be related to some of the threads that are about only certain images failing to be read... | ||
| Jason |
Hi, I am a bit of a novice with image files and have just suffered a major problem with my photos (and other files). Basically I had one hard drive with 2 partitions, one for data storage and one for the operating system. To cut a long story short I reinstalled XP and wiped the partitions ending up with Windows XP and one big "empty" partition. I have recovered a lot of files including a lot of images BUT some are corrupted and show no thumbnail image (in Windows XP) and some show a thumbnail but won't draw a full sized picture. I am resigned to the fact that I will have lost images but is there anything I can do to retrieve or rebuild what's left? I've spend days searching and trying various programs - there's loads of them out there that recover your files but not to a useful state :-( Thanks Jason | ||
| Jens Kirschner (Admin3) |
WinHex and Davory will only recover images of up to 200KB in the free trial version. Many images should be recoverable by type. Assuming both the previous and current file systems are identical, use WinHex's file recovery by name, use the mask *.jpg if that is what you are looking for and be sure to check particularly thorough search. Again, please keep in mind that files above 200KB will not be recovered with the trial version. | ||
| Paul Mullen (Pcguru) |
Jason, the problem you have is that the files were "fragmented", scattered in different areas of the disk. Most data recovery software will then only be able to find the first part of the file. Since your drive used to have two partitions, the chances are that the file allocation information for the second partition still survives. If you use Winhex to search for the boot sector, or for an "extended partition record", you will be able to find sufficient information to create a new Master partition table entry for this partition. With a bit of luck all the files in that partition should then reappear on next boot. | ||
| marv |
I had a computer guy retrieve jpg photos i had deleted from my hard drive. Some files recovered were in good shape and others would not open but gave message "drawing failed". Is there software to restore these jpg files | ||
| Jens Kirschner (Admin3) |
You could try viewing the files with the free viewer IrfanView, which in my experience does quite well drawing even damaged pictures. That way, you'll know at least how much there is left of the pictures and you'll be able to view at least that. If the pictures were recovered partially, there is no way to repair them - how should any software know, what information is missing? | ||
| Marcelo |
En definitiva....no hay solución al problema de archivos jpg corruptos???... | ||
| Jack Laider |
"En definitiva....no hay solución al problema de archivos jpg corruptos???..." SORRY: there is DEFINITELY no "solución" to fix ANY "problema" with "corruptos" images or archives. Try it ... no success guaranteed. Or do you have a "solución" for burned images on paper ? | ||
| Sandeep Kadyan Username: sandeepkadyan Registered: N/A |
Please tell me the way I can find the size of a JPEG file in bytes if the picture is not available but its header is available.I want to build a software to recover jpeg photos with less time consumption | ||
| harveywood@live.co.uk Username: harvey Registered: N/A |
Hi. I am new to winhex and have 1000s of accidentaly corruputed jpg and tiff files. I get 'invalid jpg marker in photoshop' and in automatic fix in winhex I get 'file header not found' Can anyone give me any info on how to proceed with winhex to try and recover the header. I have compared the files to good ones and tried to copy the top portion with no success. Help please! | ||
| Alfons Kramer Username: admin3 Registered: 4-2004 |
A cure can most likely only be found if one knows how the corruption happened exactly. | ||
| Marius Username: tanner Registered: N/A |
Hi everyone i have a problem with recovered JPEG files it shows that the file size are 0 bites is any posibilities to open these files if so could anyone help me? | ||
| Björn Ganster Username: admin4 Registered: 3-2004 |
If using Davory with "File recovery by name" yields files of zero length, try "File recovery by type". |