You could try to set the inter-track pause to 0 secons and burn the disc at once. Most likely this will yield a CD that sounds like a 1-track disc, but with a small tick, crack or tiny tiny pause between the tracks.
If you're lazy (like the most of us;)) you could use Nero's crossfade filter at 1 second. This won't yield a perfect mix, but in most cases it's good enough (of you don't know that there's a tiny fault, you won't notice).
If you want to do it good, you have to convert all tracks to .wav first, open them in a waveeditor, make them one track again, make track markers, split them again and burn an audio disc with 0 sec pause between the tracks and DAO enabled.