I need to convert some videos to put into a powerpoint presentation. Now the videos are from works CCTV, so are in two different formats, both of which VLC player doesn't play One being NVF, the other MP4. I've got Xilisoft Video Converter Ultimate 6, which managed to convert the NVF file. However, the video has got a benny hill speed to it following the conversion, no idea why. And the MP4's don't want to convert. So, any ideas what software to use?