I bought a San brand SD 32 gig disk for my new OMNI2 3.0" Touch LCD Digital Viedo camera. I inserted the the small memory into the bigger disk and then inserted into the camera. But when I switch on, I get a 'Disk Error'. As this is the first time with this video camera, I have no clue what to do. Do I have to format this SD disk, or what else to do with it before beginning to use it. Thank u.