Cannot import from Canon Powershot pro1
I've always imported my photos with iPhoto simply connecting my Canon Powershot Pro1 to the Mac with a USB cable.
About an year ago I started to have problems: I had to shut down the Mac, connect the camera and then start the Mac again. Connecting the camera to a "turned on" Mac didn't work: I could only see the thumbnails but after clicking "Import all" I got an error message.
Now, switching from iPhoto to Photos, this trick doesn't work anymore and there's no way to import the photos. When the camera is connected, the thumbnails appear successfully in Photo, but I'm unable to complete the import as the following error always occurs:
Unreadable files: 3
The following files could not be imported (they may be an unrecognized file type or the files may not contain valid data)
File name | Reason
IMG_9495.JPG | The operation couldn't be completed (c...
IMG_9496.JPG | The operation couldn't be completed (c...
IMG_9497.JPG | The operation couldn't be completed (c...
Help please