If the capacity of the 60GB internal hard disk proves inadequate you can easily add a 60GB or 120GB removable hard disk unit. A 60GB drive will add approximately 270 minutes of recording time. *A 120GB drive will add approximately 550 minutes of recording time. *This is the maximum amount of video that can fit on a 60GB hard disk calculated based on the DV data rate of 3.648MB/sec. It may be shorter in actual practice.