Features include:

• Create 1:1 image files of any mounted (or unmounted on Windows 2000/XP) hard disk partition.
• Can create an image of an entire hard disk, including the master boot record, partition table, and all partitions (Windows 2000/XP)
• Restore previously created images to any partition, even mounted ones, as long as it doesn't have open files.
• On-the-fly compression accelerated with parallel CPU support to take advantage of today's hyperthreaded, multi-core and SMP systems.
• Skip reading a disk's "free space", treating it as if it were zero. This decreases the size of a compressed image and makes it process MUCH faster.
• Network Block Device support to make images of disks on remote machines, and restore back to them.
• Multi-threaded design for maximum throughput and low CPU overhead.
• It's free software - free as in cost, and free as in Open Source - released under the GNU General Public License.