As a thought because I get this quite often...

First try just playing a bit of each of them first that often works
Second try changing the order of the tracks by dragging around, that often works
Third try removing a track and putting it back

I record all our band practices and sometimes burn to CD (albeit mp3 rather than wav usually - but same applies)

Inevitably first time through it says it can't burn one or more. It also says that it should tell me which one/ones are causing the problem which sometimes it does with a little red x against them and sometimes not.

But inevitably having done one of the three things it works.

One day I will bother to find out what the actual problem is but until then I will continue with the Heath Robinson click and guess method that always works!

I could use one of many other burners but quite like the sport haha. And that one day it may just work properly first time. I have never had to install any codecs or anything to make it burn. The burned CDs are as fine as any other burned CD