some album tracks not being sinked to iPod touch please help.

hi all I hope your all well. I have a 5gen iPod touch I'm running iTunes on Mac os10. every time I sink my iPod using iTunes for some reason it does not sink some tracks to my albums I lot of my albums have 1 or 2 tracks missing on my iPod because iTunes is not sinking them. Does any one know why this is happening and how to solve this problem?

your help with this problem would be most welcome, kind regards trey.

Forum: 

#1 Make sure all tracks are in your directory

Make sure all tracks are in the album's directory and also make sure you've got clean tracks. What I mean by clean tracks is this. Make sure you have no damaged files.