I suppose you are using GNOME instead of KDE.
K3b is a kde app so it might be a problem with libraries or something.
I suggest you to try Brasero or Gnomebaker.
There is also Nero for Linux.
mint 7 hang when run K3b
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Re: mint 7 hang when run K3b
Run it from a terminal and see what the output says. Even when it runs normally from a terminal there is a wealth of information.
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