Moved to the Newbie Forum
Hi, welcome :)....can you provide a Nero error log if possible? If a burn fails in Nero, it'll prompt you to save an error log.
Save the log as a .txt file, and either attach it to your post, or copy and paste the contents of the log into your reply - making sure to remove your Nero serial number first
Assuming you're using Nero, of course. If not, please state which burning program you're using, and a bit more detail about the error would be great.