What is an ADI file

The ADI file type is primarily associated with Active@ Disk Image by Active@ Data Software. Active@ Disk Image is a software utility that creates disk, raw and ISO images. Disk images and Raw disk images are both saved as .ADI whilst ISO disk images retain the standard ISO format. A raw disk image copies the entire drive sector by sector, the differentiating attribute from a disk imaging that only copies the used sectors of a hard drive.