Originally posted by Joe Dee I uploaded the Pentax photos directly from my camera to my computer using the USB cable as I have hundreds of times before without problem. I've always been able to view my photos just fine until now. There are about 66 pictures that I can't see out of 200 or so. They are all PDF format. I run Windows XP Professional on my laptop. The files are still there as they show the file size but when I try to move, copy or change their settings a message comes up "make sure the disk is not full or write protected and that the file is not currently in use". Seems like they're just not accessible for some reason. Hope this helps. Your help and feedback is very appreciated!
This is a problem that can happen at times when you move files rather then first copying them, then removing the originals.Your operating system (WinXP in this case but all OS's can fall prey to the issue) removed the originals before it completed writing the copies. Copying directly via USB cable should work fine most of the time but if you do not use [Safely remove device] before unplugging the USB cable, sometimes file corruption can occur.
I would advise you nevertheless to invest a few bucks in a card reader. Using the camera as such may cause unnecessary wear end tear on its micro-USB port as well.
You may be able to retrieve the deleted originals provided you have not saved/written anything else to the harddrive since.
In future, when handling precious images, copy over the images to their new location, check they're OK and only remove the files from their old location after that.