Gapless playback problem on cd's burned from iTunes

I'm having problems with burning cd's from iTunes that are supposed to have gapless playback from song to song.
Example: I start making a playlist of songs and lets say Tract #1 is a song that is original length of 4 min. and 32 seconds, well For tract #1 I only want to use the first 3 seconds of the song and then go gapless to Tract #2. So I adjust the start and stop times in the song info options and change Tract #1 stop time to 0:03.00 seconds, then I add tract #2, #3 etc.

When I then play the playlist in iTunes Tract #1 plays for 3 seconds and then Tract #2 starts playing right after Tract #1's 3 seconds are done and with "no" gap between Tract #1 and Tract #2 (which is what I want).

But, when I burn my playlist to cd, and take it to my car or a cd player to test, tract #1 plays for about 6 seconds, that's 3 seconds of sound and then another 3 seconds of dead air, then it plays tract #2.

I do this with several tracts where I only use short snippets of songs as an intro to the next song, this works really good as long as you don't have a gap between songs.

I have also noticed that when I put the burned cd into my computer and iTunes reads it, iTunes shows the total time for in this case Tract #1 as 6 seconds and not the 3 seconds I made it. Itunes seems to make anything that's under 6 seconds, six seconds. If I make intro tracks that are 6 seconds or longer, there is no gap from song to song on the burned playlist cd.

Note: The playlist if played from iTunes plays all intro snippets fine with no gaps even if the snippet is only 1 second long. The problem arises only on the burned cd playback and only on snippets that are less then 6 seconds.

Anybody have a clue as to how I can make these intro snippets that are less then 6 seconds long not have a gap from Tract to Tract.

Thanks so much