Cannot open jpeg, jpg or some other extensions such as exe files from thumb drive.

[Chilimon]

6 or 7 years ago I put a load of pictures on a thumb drive. At that time, the thumb drive was used on a Windows computer. All files were scanned by updated McAfee. I have since switched to MAC, glad I did. Some files will open, most will not.

Does anyone know anything I can try to recover them ?

 

[MacInWin]

Well, exe files are Windows executable programs and won't open/run on Mac. The jpg, jpeg, etc, should open with Preview.

But thumb drives are notoriously unreliable for long term storage, so the whole thing may be duff.

 

[IWT]

@Chilimon

Thank you for your post. Most welcome.

I think it was quite brave of you to commit any kind of long-term storage to a Thumb Drive. Apart from their unreliability, Macs can only read files of any sort that are in some kind of "universal" format such as Word, PowerPoint, Excell, standard photo formats, and as Jake said, like jpeg along with basic video formats.

Again, as my friend Jake said, exe files are unique to Windows. You could try to download such data to a Windows PC and convert them to a more universal format if you can (excluding exe) and try again.

Another option is to purchase Paragon for the Mac which allows the Mac to read and write to NTFS discs:

Microsoft NTFS for Mac | Paragon Software

Boost Your Mac with Paragon File System Link. Read/write Microsoft NTFS files on your Mac for free.

www.paragon-software.com

As the photos and other data have been on a Thumb Drive for 6-7 years, I wonder how precious they are. Only you know that and our suggestions at least offer a partial solution.

BTW your CT scan of the brain (not your brain , I assume) is rather neat. You may or may not be glad to know that the single slice you put in your avatar is normal

Ian

 

[pm-r]

OT...

BTW your CT scan of the brain (not your brain , I assume) is rather neat. You may or may not be glad to know that the single slice you put in your avatar is normal

Ian

Say Ian, I'm sort of curious if you're implying that poster Chilimon's brain may not be normal. But it should be satisfying
to know that the one being used is normal just in case it is theirs. I



- Patrick
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[vince77]

You cannot run.exe on MacOS that's for sure. And if you want to recover jpeg and jpg(in case they are corrupted) then you should go for Data recovery software like DIskdrill or EaseUS.

 

[Jonzjob]

If I can butt in for a second, can you tell me what the difference is between a jpg and a jpeg?

It's a question I've been meaning to ask for ages.

 

[MacInWin]

Simple, it is an "e."

 

[Jonzjob]

Ta Jake, that was 'e'-zey weren't it. I had an idea that was the case.

 

[MacInWin]

Actually, I don't think there is any difference. Way back in history the filename format was settled on 8.3, that is, eight letters in the first part of the name and three in the extent. There may have been a technical reason for it, probably to do with storage limitations with machines only having small RAM (My first purchased system had 16K of RAM.) but now there is no reason and the restrictions are lifted so now developers are using more letters for filenames. docx, jpeg, etc, are the result. This website has a list of some of them: http://www.vidyagyaan.com/computer-knowledge/list-of-computer-file-extensions-and-their-meaning/

 

[Jonzjob]

Blimey, I hadn't realised there were that many file types. I don't think I'll try to remember them all

Easy to tell that this is a Trans Atlantic Cousins format. It just told me that there's a "z" in realise

 

[MacInWin]

Of course there is a zed in realize. Everybody knows that. Not everybody knows it's a zed, some say "zee" but I lived in zed-land for. couple of years...

 

[Jonzjob]

I'll stick with the 's' Jake and you can hack off the zeds mate

 

[pm-r]

If I can butt in for a second, can you tell me what the difference is between a jpg and a jpeg?

It's a question I've been meaning to ask for ages.

An excellent question to ask Google etc. and you'll probably get more info than you ever wanted to know. Just ask it your question:
ie: what the difference is between a jpg and a jpeg?

what the difference is between a jpg and a jpeg? - Google Search

- Patrick
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[chscag]

The Google Search says exactly what Jake posted above Patrick.

 

[pm-r]

The Google Search says exactly what Jake posted above Patrick.

Not exactly surprising Charlie, I posted the Google search suggestion as a reminder and an example of how easy it is to get an answer and without bothering anybody else, and it's fast, but I must say, so were the mac-forum replies!!!



- Patrick
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[chscag]

Always good to get a second opinion Patrick.

 

[MacInWin]

Always good to get a second opinion Patrick.

Particularly on anything *I* say!

 

[Lifeisabeach]

Actually, I don't think there is any difference. Way back in history the filename format was settled on 8.3, that is, eight letters in the first part of the name and three in the extent. There may have been a technical reason for it, probably to do with storage limitations with machines only having small RAM (My first purchased system had 16K of RAM.) but now there is no reason and the restrictions are lifted so now developers are using more letters for filenames. docx, jpeg, etc, are the result. This website has a list of some of them: http://www.vidyagyaan.com/computer-knowledge/list-of-computer-file-extensions-and-their-meaning/

It was a limitation of the FAT file system, and thus by extension, DOS.

 

[MacInWin]

I started on TRS-DOS, I don't remember if that was a limitation there. Of course, all the disk storage then was floppy disks. Hard drives came later. I do remember TRS-DOS would search multiple floppy drives until it found what you asked for, you didn't have to specify a drive in the name.

 

[pm-r]

And just to confirm and elaborate a bit what has already been stated:

JPG#

Then we have the JPG format. There are actually no differences between the JPG and JPEG formats. The only difference is the number of characters used. JPG only exists because in earlier versions of Windows (MS-DOS 8.3 and FAT-16 file systems) they required a three letter extension for the file names. So .jpeg was shortened to .jpg. While Windows and or DOS had this limitation, UNIX did not and so UNIX and MAC users continued to use the .jpeg extension. Newer versions of Windows of course now accept more characters in their file extension, however, .jpg was already being used by a majority of people (and programs needed to work with MS-DOS 8.3) and so it still is the most common extension.

Photo editing programs like Adobe Photoshop and Gimp, all save JPEGs by default to the .jpg extension, on both Windows and MACs. And if you were wondering, you can change the extension both ways and the file will continue to work.

Difference Between JPG and JPEG - KeyCDN Support

Both .jpg and .jpeg file name extensions exist. Quickly learn the difference between these two extensions and which one you should be using.

www.keycdn.com

- Patrick
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