Nero

My experience with video editing/rendering programs is that when this happens, your best bet is to completely delete the programs including folders and the register, although the latter can be dangerous. It's never a good idea to install more than one video program on a machine at a time, they don't play well together. I recently got Adobe Premiere Elements and it's proved to be the most stable video program I've ever used including an earlier versions of Pinnacle, Power Director, and several versions of Easy Media Creator

It's actually any file i add, and i removed any association with nero to any file type before installing so it doesn't interfere with other programs (not that i have any other programs that handle cd burning etc). Maybe its a problem with my OS?

Try burning with another program, e.g., Windows Media Player or Audacity, which is free, for music. I think Virtual Dub will burn Videos but not sure, been a while since I used it and it's free. Are you trying to burn a VCD or DVD for video?

Suggest you download the trial version of Adobe Premiere Elements and try burning a DVD with it. I don't remember what if any restrictions,l e.g., the length of the DVD or if they put a watermark on the DVD. I don't know of any free DVD burning software but that doesn't mean it doesn't exist. If you can burn with another program, then you know the problem is with Nero. Have you tried to edit the video before burning? It's possible that Nero cannot handle the file format you're trying to burn. I've used a lot a of video editing/burning programs over the years but not Nero. Not certain but I'm thinking Nero may have one program for editing and a second for burning. When you edit a video, the program will save the edited piece in a proprietary format that can only be read the program itself. Don't know if Nero will more your typical video format files like mpg or avi. What is the file extension of the file you're trying to burn?