NEX5N SD Card/picture preview question

Hello,

I recently returned from a trip and have processed all my images from RAW to jpg and want to put all the jpg files onto one memory card so I can use the HDMI out for showing off pics on a TV. However, when I move my jpg files to the image folder (I:\DCIM\100MSDCF) they are not recognized by the camera. The camera says "Unable to display" and when I go to view mode I can see all the thumbnails, but they are grayed out. So the camera knows the pictures are there, but won't display them. Does anyone have a fix for this? I want to be able to carry my camera to family/friends house and connect camera to tv instead of lugging around a laptop to connect to a large display. Thanks for any info.

edited to add that when I have all my pictures stored on the camera and none of them are able to display, I can take a new picture and it displays/previews fine.

 

I did try the Recover Image DB and it "recovered" for 15 minutes or so, but no favorable results were gained. The EXIF info I did not save. Not by choice, more of an oversight.

 

Not saving the EXIF data seems to be the problem. Using a program called exifer, I was able to generate a thumbnail of the image (although the resolution was horrible and no settings to change this) and I could view the image on the camera, albeit at horrible resolution. Does anyone know of a way to "regenerate" the thumbnail?