list = '';
$.each($('.title.video-title'), function(i, item){
    list += $(this).text() + '\n';
});

alert(list);

function getPlaylist(playlistId) {
    $.ajax({
        url: "http://gdata.youtube.com/feeds/api/playlists/"+playlistId+"?v=2&alt=json&start-index=1&max-results=50",
        dataType: "jsonp",
        success: function (data) { 
            getTracks(data);
        }
    });
}
function getTracks(playlistData) {
    var tracklist = '';
    $.each(playlistData.feed.entry, function(index, item) {
        tracklist += item.title.$t + '\n';
    });
    alert(tracklist);
    return tracklist;
}

getPlaylist('71B8152559FA2805');
getPlaylist('7AB74822FE7D03E8');

http://www.youtube.com/playlist?list=PL7AB74822FE7D03E8&feature=plcp

Rip Youtube Playlists (Unfinished)

JavaScript