HONGYU Exact Disk Image Utility may save physical sector as image files. Key features: high-speed engine, support various mass storage devices, multiple file systems copying from logical partition. Make an exact sector image using a high-speed algorithm. No matter whether file system in the disk is corrupted, totally coping by a physical method. More applicable for HDD partitioning, backup of non-standard file systems, encrypted-disk duplication, forensics data source creation and scene preservation after data loss.