Please disable graphic processor of Camera raw.
Click Photoshop -> Preferences -> Camera Raw (MAC) OR Edit -> Preferences -> Camera Raw (Windows)
Scroll down at the bottom and uncheck Use Graphic Processor.
Click OK and then close Photoshop and then try to use camera raw the same way you used earlier.
Let us know if that resolves the issue.
Thanks for your reply. It is better but still some images coming into camera raw. I then save it in Faststone as a jpeg and then edit it in PScc. In Faststone the raw images are fine no stripes. Once again thanks for your help
It might be helpful to see a screenshot of what it looks like.
I’d guess that the raws are corrupted. Specifically, the raw data is corrupted, but the camera-embedded preview JPG data is ok, and Faststone is just manipulating the JPG portion of the raw file so does not show the problem.
In Faststone one has to press keyboard A to actually render and view the raw image, otherwise as ssprengel suggests you are viewing the embedded jpg.
Any chance you could share one of your troublesome RAWs with us? (Yeah, I know. Trust, copyright and all that. Personally, I don't care about this aspect of photography. I would destroy it after illustrating my results.) That way, we can find out if it's the actual RAW image causing the problem. If you want to do this, upload the RAW via CC or Dropbox and share the link publicly here.
One question could it be due to memory/ram problems? I need to upgrade from 2 go to 8 gab ad PS sometimes says not enough ram
Nah, PS should still show the image properly. Tasks would just be slower (since it would be using your scratch disk). Your RAW, when opened on my system, takes up a little over 600 MB of memory in Photoshop.
It's got to be the RAW itself. This is how it looks in both Camera Raw and Photoshop (and Bridge) on my desktop:
I tried disabling GPU acceleration too. No joy.
You should try copying the files from the card(s) again and see if they are corrupted the same.
if they are then the files are bad on the card and you should probably get a new card and you don't have much choice than to save off the embedded JPGs using Faststone and use those in lieu of raw files. It's possible the JPG preview will be corrupted as well, but it's much smaller than the raw data so there's more chance it'll be ok. If using a new card doesn't fix things, then perhaps the camera, itself is bad, but I've never had that happen, only bad cards.
if a second transfer yields ok files then perhaps it is a problem on your computer, the hard-disk perhaps, or the hardware involved in the transfer: the USB cable or card-reader may be at fault.
Once again thanks for your help.
It turns out it was the card now to work out which card