I was made redundant in autumn 2010, by which time the company had not exploited the material in any way, but they are now beginning to release DVDs.
My contract with my employer was for the provision of consultancy and training to its clients, and there is no assignment of any rights in my image on video. In fact, when I joined the company in autumn 2008 the VBT project had not been conceived.
Can anyone advise whether I might have any rights in the script that I wrote or in the video material which I presented? The other presenters, who unlike me were not employees of the company, had signed contracts covering their rights, but I had no such contract for the video-based training.
I fear the worst, but hope for the best

Thanks for your help,
Phil