Video Camera to Mavericks

I have an Olympus Linear PCM Recorder, model LS-20M. When I connect it via USB to my Mac Mini with Mavericks installed, the computer can no longer read the videos from the camera properly. What can I do to fix this?

Here is the instruction manual for the camera: http://www.olympusamerica.com/files/oima_cckb/LS-20M_Detailed_Instructions_EN.pd f

The issue seems to be with the audio. When I preview the videos, they play fine, but without sound. Trying to open them in QuickTime gives me a corrupted file message. Opening the files in VLC gives me video and extremely distorted audio.

On computers without the Mavericks update, the videos are fine.