We have just released a new version of CDx : Open-source Realtime Collision Detector benchmark.
Download our CDx benchmark version 1.1 here.
This new version is largely simplified, specially the simulation of the input Frames is changed, now each frame is computed on-the-fly. The version 1.1 of the benchmark is used in two research papers recently published at EuroSys'10 and PLDI'10, see our list of publications.
The CDx benchmark is now distributed under the New BSD License.