Google aint helpin much

I just put some videos on my pc that were on my videocamera. But now, there are some files on my pc that I really never heard of.

I put all the videos in a map and per video, there are 3 extra files, a .cont, .pmd and a .emb file. I googled them, but I still have no idea what they mean.

And since I want to burn the videos on a DVD, I was wonderin if I also need to burn those 3 weird thingys with it :D

Thanks in advance

Musicz