Raw Disk Access 1.1

By Electronic Fantasy World

Freeware 04 Jul 2004

In category

Components > Files and Drives > Disk Access


RDA makes direct, low-level, byte-precise reads and writes to mass-storage devices easy. No need to have to deal with DOS interrupt calls or any such nonsense - RDA takes care of all the behind-the-scenes work for you. RDA also handles the variations in access methods needed by different Windows versions. RDA can read from or write to any specific sector on a logical drive.

And if that’s not easy enough, there’s even a nonvisual frontend component that makes RDA appallingly easy to use - pick drive/first sector/how many sectors to read, call one procedure to perform the actual read, read data from a property.

New to RDA 1.1 - RDA has been upgraded to support partitions larger than 4GB. You can now read from or write to any sector or cluster on a FATxx or NTFS partition of any size the filesystem allows.

RDA is based on and inspired by a Delphi unit file called VWIN32, written by Geir Wikran, and incorporates portions of VWIN32 directly. As such, RDA is released under the same licensing terms as VWIN32 - free for personal or commercial use as long as the source itself is never sold or misrepresented.

RDA is designed for Delphi 7, but should be adaptible for most versions of Delphi with minimal to moderate editing.

Please note: The RDA distribution includes a demo application which requires the Hexeditor components by Markus Stephany.


  • Status: Fully functional
  • Source: FW
  • Exe demo: included
  • Size: 384 879kB


  • Delphi 3
  • Delphi 4
  • Delphi 5
  • Delphi 6
  • Delphi 7