Gapless Playback
iTunes now has options that enable the long-requested feature called “gapless playback.” This enables the continuous, uninterrupted playback of certain albums which were meant to be played without the short gaps that iTunes and previous iPods had to place between tracks. Good examples are live concert albums and electronic mixes.
To enable gapless playback for these albums, select the tracks in the album, choose “Get Info” from iTunes’ “File” menu, toggle “Gapless Album” to “Yes,” and click “OK.”
With this tag set properly, the iPod and iTunes will automatically play the tracks without gaps.