Hi all, I'm still here...
I have done so many test and the result is that when there is silence between two tracks, the second track start playing after about 0,3 sec.
In some cases change of frequency solves. In other a fade is enough to "link" the two tracks.
But in there isn't a definitive solution.
In the most of cases, you don't hear the issue, because there isn't sound to play in the first 0,2 - 0,3 seconds of the track. Or there isn't silence between tracks.
With some albums, it's very annoying issue.