Pavtube Free Video DVD Ultimate aims to convert DVD disc and MP4, MXF, M4V to AVI, MKV,etc with fast conversion speed. 

With a PC running on a CUDA-enabled Graphics card, or an AMD graphics card with AMD APP technology, Pavtube Free Video DVD Converter Ultimate could take full advantage of the NVIDIA CUDA technology and AMD Accelerated Parallel Processing (APP) to largely accelerate video encoding speed.