On my DCS-942L, SD recording is triggered by motion. Pre and post event settings are at 5 seconds each. Recording length is 6 minute per file. Motion detection sensitivity is 95%. If I jump up and down in front of the camera for 6 minutes I will never get a full 6 minute recording. Most times it will record for 20 or so seconds, then miss a minute or two and then record another 10 - 30 second recording. How can I get this thing to keep recording if there is movement ? It's useless as a security camera if it intermittently skips motion and doesn't record the video 100%. Any ideas before it goes back to the store ?