Reply to OT: iTunes is driving me crazy

alright, so i've tried googling and even tried searching on here for an answer to this, but due to the common keywords involved i can't seem to find any solid answers.

i'm using a dell laptop running windows 7 and the latest version of itunes, everything that can be up-to-date is, and i keep all of the music for listening and djing in a single folder on my desktop that all gets poured into itunes for general listening and picking out tracks to dj with. when i right-click on this folder and click "properties" it tells me i have about 22,000 files in there. however, when i either let itunes automatically build a library out of these files OR when i try dragging and dropping this folder into itunes, itunes only ends up saying i have about 13,000 songs. these folders and individual songs i'm putting in are fairly well organized and contain mimimal .m3u, .txt, .jpg, etc files (if any) that would typically go along with a ripped or downloaded album or track, definitely not enough of them to account for 9 or 10,000 files.

does anyone know how to see what it's failing to add, or a different method for importing things to itunes that won't skip over files for whatever reason? i know i'm bound to get some "don't use itunes/use ______" responses, but it's just what i prefer as far as interface and integration with djing software i'm using. thanks in advance for any help, guys