Burning a CD?

So, I don't know if this has anything to do with it, but I just upgraded to the latest version of Itunes. I'm having trouble burning a CD, it starts to burn the first song, and part way through, it stops completely and my disc is ejected automatically. Then I get "unknown error" message. Is there a way to figure out the problem, if it's Itunes or my drive? I've ruined 5 discs so far trying various things 😟 I tried deleting the first song from the list in case there was something wrong with the song, but it did it again, same thing. If support reads this, please respond. Thanks everyone.