Song information appears different in itunes library

Question

generally go to FILE- ADD FOLDER TO LIBRAY , and import all songs from my hard drive into itunes , but the format of track names appear differently in the itunes track name area
1 - some of my track names are very long. When i copy into itunes library from the hard drive i see a different format
sometimes i dont see the full track name, if the track name is more than 35 characters
2 - but sometimes, even if it more than 35 characters i see the full track name
3 - sometimes - i only see half the track name, and surpringly, the first half of the track name has not been caught ( generally you would - as in the case of my first question - would expect to see the first part of the track name
4 - sometimes i see the track name in 2 parts - and though the artist name is included in part of the track name in the hard disk, in itunes it automatically is shown in the artist colomn, ( but note here - mostly the itunes library catches whatever is in the track name of the hard disk - and substitutes it in the track name of itunes )
DO I NEED to learn some kind of simple setting before i go inyo - FILE- ADD FOLDER TO LIBRAY

Answer 1

Solution found. I find this amazing, but the iTunes library and the iPod treat duplicates in different ways. In iTunes, if one accidentally ends up with a duplicate song (for example by ripping the same CD twice, not realizing it was ripped before) the iTunes library shows the song twice (and the underlying mp3 files exists twice in the store). And the number of songs showing in the library includes both copies of the song, the original and the duplicate. If you then synch up the iPod, however, iTunes only loads one copy of the song to the iPod. So in my case it transpired that there were 40 duplicates on my computer, none of which downloaded to the iPod, and that is why the song count was higher in the iTunes library, and why the volume of music in the library showed as 240 MB more than what was in the iPod. Very strange design that iTunes knows enough not to download duplicates, but still shows them in the library. Solution is to go to Edit / Show Duplicates in the iTunes library, but be careful as there will be many false positives.