Final Cut Pro X :: Unable To Create Camera Archive

When I try to create a camera archive from the card a videographer gave me I see that the archive grows to the expected size but then I get a message saying "Unable to create camera archive". Here is what the card looks like with all its folders open:

Here is the Inspector from one of the files on the card:

Here is how Final Cut sees the card from the import window:

I also imported the files without making a camera archive. In that case Final Cut copied all of the files, not letting me choose the option to leave the files in place. I am able to use the files so copied, except the audio is missing in the final frame of each clip, an example of which you can see below. There is a video image in the final frame and it is different from the one before it and the one after it.

I've also tried to process the files with ClipWrap but ClipWrap does not allow me to drag anything from the card onto its clip window. Why does Final Cut fail to create an archive? 

Is there any better way to import the files than the way that led to the missing frame of audio on the end of each clip?

Info:
iMac (27-inch Mid 2011), OS X Mavericks (10.9.1)