Profile: Multidata Systems International Corp. provides medical physics solutions for radiation oncology. We offer a complete line of Realtime Waterphantom Dosimetry Systems for relative dosimetry. The High Resolution 9800 series allows detector positioning with a resolution of 0.1mm. The scanning mechanism provides ample scanning volume and an unobstructed access to the entire water surface, which allows easy positioning of even the largest electron cone and is especially designed for best possible handling of linear accelerators with low isocentric height. These high resolution waterphantoms are entirely software controlled and do not require a separate external controller box. RTSuite is our latest treatment planning system. RT Suite is compatible with the treatment delivery equipment of all major manufacturers and offers a high degree of interoperability, supporting the DICOM RT and proprietary format solutions of other RT equipment manufacturers. Our DSS Decision Support System is a widely used treatment planning system. It is available as a stand-alone, one workstation solution or as a network-based solution with additional workstations. It is typically configured with the option for the import of CT data. A digitizer or flatbed scanner can be added for digitizing patient slice information from films. Our MultiCut block mold cutting system is compact, quiet and low in emissions, allowing its installation in an office environment. Block files or patient imaging can be imported from treatment planning, the simulator or a virtual simulation system using DICOM in MultiCut. Even physical films can be scanned using an optional flatbed scanner or digitizer. We also offer a wide range of services for the radiation oncology departments.