Song and Artist Info missing under itunes but not in the original file, and putting track number next to certian songs. Help

Question

i recently updated my itunes...today i opened it up and moticed abuout 100 songs missing...they are now at the bottom of itunes song list with a number next to them with information mission such as this the example below
01 human                                                                 (this song should have the killers name as artist and cd title, etc)
01 hosanna     hillsong united                                 (this song should have the cd title to it)
02 lay me down                                          burning light
02 leave out all the rest
02 let it be                       the beatles
03 papercut
when i go under the original folders and files in the itunes folder everything is normal no missing info, etc. but under itunes orgnising its picking and choosing the same songs and putting the track number next to it and others songs in the same cd not. plus info missing. under the infor when i click right button all info missing there...but not under original file.
please help

Answer 1

A response on this subject from another post:
It could be that you have inadvertently imported these CDs into iTunes as part of a compilation. If so, the artists won't show in the artists menu on the iPod.
To check, highlight the tracks on one of the offending artists CDs in iTunes, right click and select "get info". This brings up a multiple song info window, and from there you can check if you have 'yes' in the box marked "part of a compilation".
If you have, select 'no' instead and click 'ok'. Do this with any CD that has this issue. This will alter the info in iTunes, and you should then connect your iPod and synchronize the changes.
The problem arises because the information contained on the Gracenote CD Data Base (where iTunes gets all it's album/artist/track info from), is sometimes incorrect. It can show CDs as compilations when in fact they are not.
ramstigo wrote:
I had an earlier post on this subject with a similar problem. I tried what you suggested and it worked indeed. You can select the artists from your Ipod on Itunes and after highlighting the artists/albums affected, click NO on the compilation box and the issue is resolved: the artists appear on the list.
Thank you so much!!!!.