Viewing photos from usb

Are you sure that the PC is choking on real photos, and not on any ._*.JPG metadata files that the Finder may have created on the USB flash drive?

That's the Finder's way of being "clever" about preserving some Mac filesystem metadata on non-Mac filesystems like FAT32. If you have a file like PHOTO.JPG, it will create another one called ._PHOTO.JPG. The second one isn't a photo file. But many non-Mac systems will see the trailing .JPG, assume that it is, and complain upon discovering that the contents are "corrupt" for a JPEG file.

DianaAldridge Said:

"Viewing photos from usb: USB photos were visible on MacBook Air when first plugged in… but then tried viewing on PC (IBM) and some of them won’t open. It says 'need access!'"

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Seeing a Photo:

Rather than Format: Have a Printer with an LCD Screen? If so, plug it in to that. Then, see if you can view it on you PC. That word for me. It needs to be connected to the same network, and then printer drivers need be installed on the PC.