Exactly what is INSIDE the video you are editing?
Codec & Format information, with 2 links inside for you to read http://forums.adobe.com/thread/1270588
Report back with the codec details of your file, use the programs below... A screen shot works well to SHOW people what you are doing
http://forums.adobe.com/thread/592070?tstart=30 for screen shot instructions
Free programs to get file information for PC/Mac http://mediaarea.net/en/MediaInfo/Download
Does your video use a VARIABLE Frame Rate or a Constant Frame Rate?
If your video uses a variable frame rate you will need to convert
Your details and the specifications for your Logitech HD Pro Webcam 920 point to the variable frame rate as the cause of your problem (according to the webcam specs Frame Rate up to 30 fps - that translates into a variable frame rate for me). Premiere Elements does not fare well with video recorded with variable frame rate. The result is out of sync audio or the video does not import at all.
I am assuming that the webcam is giving you H.264.mp4 1920 x 1080 p(variable frame rate). Convert the variable frame rate to a constant one using the free HandBrake program. It is quick and easy, and, as a first pass, you do not have to get fancy with the settings. Just set the essentials, and then import the frame rate converted file into Premiere Elements with the correct project preset, followed by determining if the problem(s) are gone.
1, Click on Source/Open File to import your source.
a. I changed Chapters to Seconds in the row below the Source Tab
b. For Destination, browse to designate the save location for the H.264.mp4 file that is going to be generated.
c. Set the Container = Mp4.
2. Leave the details under the Picture Tab as is.
3. Go to the Video Tab. And set as in the screenshot.
Do not set Framerate (FPS) = Same As Source....if your frame is given as 29 with a min of 27 and max of 30,
then set for 29.97. Do not forget to dot the Constant Framerate choice.
3. Hit the Start button at the top left of the workspace and wait for "Queue Finished" in the progress bar
that is at the bottom left of the workspace.
Please let us know the outcome. If necessary, we can go over your Premiere Elements project preset and the
rest of your project setup details.
I am having the same problem, I have tried the hand brake idea, done exactly as you have suggested but when I press start, I says "You must first scan a source and set up your job before starting an encode. Do you have any idea what that might mean I have to do?