My camera is an Olympus Camedia Digital C-50 Zoom. The photos I opened under Pictures on my computer under the Olympus file were an older version of photos taken long ago than the more recent photos I'd tken 4 days ago so I deleted them from my camera. Unfortunately without copying the newer photos onto my computer. So the photos I deleted on my computer's E drive (Olympus camera) deleted the reent photos taken 4 days ago. I can't understand there was the error of older photos on my computer drive than the newer photos on my camera. Many thanks.