IMPORTANT! - DDD-SI is only intended for the following usage:
DDD SI software is designed for use by system builders who have a need to test/optimize many drives. It provides many advanced productivity features for businesses.
DDD-SI is designed for specific test environments. It includes test sequences that write data to the hard disk drive. Do not use Quick Test / Full Test if you need to maintain customer data stored on the hard disk drive. Quick Test / Full Test will overwrite all data that is stored.
DDD-SI is NOT suitable for testing a single drive in a home system.
For testing a single drive in a home system, please use the Drive Fitness Test