- Device Driver exclusively designed for AT/IDE Hard Disk Drives that activates the drive's MULTIPLE SECTOR BLOCK TRANSFER MODE. Boost the drive's Data Transfer Rate (DTR) by 25% to 45% !! This version now supports both drives, Windows compat, and a block size of 1 for older drives. Includes IDE Inquiry util and an excellent DTR test to measure the results. Requires: 286+CPU. Shareware from Dustbowl Designs, Inc.