You may need to check the file properties first before importing it to FC. In the Finder, select the file and go FILE >> GET INFO. This will show you the file size and dimensions (and more). Now if the dimensions are larger than your DV PAL/NTSC Preset the image will exceed your canvas. You can resize it within FC if you wish. With respect to Sound, check if there is sound using QT Player first. You need to know more about the source file to see what you can do with it. Where it works (original creator application) and what exact format (including assets) it is. Hope the above is helpful.