The audio and video being out of sync in the digital file may be caused by various factors such as incorrect settings, hardware compatibility issues, or a problem with the software itself. To resolve this issue, you can try adjusting the settings within the software, ensuring that the USB DVR Capture Model DC60-008 is properly connected and recognized by Windows 10, and checking for any available updates or patches for the program. You may also consider reaching out to the software's support team for further assistance.