In Pixela ImageMixer3 SE, when files in excess of 2 GB are written back to the HF10/HF100, the playback of those files is skipped on the video camera. (These files cannot be played back.)
PIXELA has issued a software patch to correct this issue. The patch can be downloaded from the website listed below.
http://www.pixela.co.jp/oem/canon/e/