Originally Posted by Richard Lee
Okay, thanks for the advice, JimC. I will ensure the internal storage is formated before going forward.
That's your best bet. Personally, I always reformat media after *every* reuse using a camera's menu choice for format, no exceptions. That insures that I always start out with a fresh FAT, just the way the camera expects it (since it's performing the format)
PhotoRec doesn't recognize the T700 although Windows (under which PhotoRec is running) does recognizes it as mass storage when connected by USB (third image, at bottom, chronologically the most recent). As soon as the camera is connected by USB, the camera display itself says "USB connected" and "mass storage". Oddly, PhotoRec does see the PMB partition (F: in this case) which is also on the camera but not the actual storage (I: in this case).
Drive letters being assigned by Windows may not have anything to do with the actual storage device being seen by applications like Photorec.
But, do make sure you check any USB related menu choices to make *sure* the camera is set to USB Mass Storage (in case that's an erroneous message and it's really using PTP instead). Also, note the section about using the whole disk options in that sticky. I suspect you may be seeing some interference from Sony's PMB software, too. In that case, using Photorec under Linux would be another way to approach it (or just making a disk image copy of your camera's internal storage and running Photorec against it).
Are the photos really important to you? If so, I could try to talk you through downloading a Live Linux distro, burning it to disk, booting into it, and running some commands to do that kind of thing. Naming conventions are very different running under Linux and it can be a bit intimidating to some users. But, that would be a better way to approach getting them back.
Mepis 11 would be a good one to use for that purpose (it's got Photorec preinstalled, as well as utilities like ddrescue that can be used to make a disk image copy of your camera's internal storage). The latest version was just released (and Mepis 11 is what I'm running right now for my desktop Operating System, as I have been since the first Release Candidates came out). See the press about it here:
If you want to go that route, download the 32 bit .iso (for best compatibility with more software) from the link in that press release. Then burn it to DVD using something like the free isorecorder (it will give you a new choice to "Copy image to CD/DVD" if you right click on the .iso file you download from Windows Explorer).
Basically, we'd use something like the technique described in my posts on this page to make a disk image copy of your storage using ddrescue, then use photorec to recover the images from that disk image file (which would be a sector by sector copy of your camera's internal storage stored to a single file).
..."Thumbnails in Win7 Explorer refreshed after import from PMB" (second image, middle) is what the full sized photos look like, corrupted or not, when seen with a photo viewer app such as the one built into Windows.
Embedded thumbnails in images are separate photos (and will often look just fine even when the full size image has corruption problems).
But, Windows Explorer can build it's own thumbnail cache from the full size images; and because the full size images are corrupted, the new thumbnails built by Windows will look corrupted, too. ;-)
They're probably already corrupted on your internal memory. But, in some cases, you can have photos that are continguous and show up as corrupted because of File System Problems. Realistically, they're probably already corrupted and you'd be wasting your time trying to retrieve any of them intact. The only way to know would be to try using tools that can ignore the underlying file system entirely (as photorec can do) to see if any of them may be OK.