[ABSOLUTELY URGENT] Question about iTunes

[wildconnetta]

Hey everyone.

So, I turned on my comp 2day and opened iTunes (per the norm). I have a near 100GB iTunes library. My iTunes library (with this amount) was damaged. I got left with an old library with 5GB. I refilled this to about 58GB. I went out for the day, turned on iTunes again (same problem), and this time, I got left with 268MB. WHAT THE HECK IS GOING ON?

If I could please have an answer from you tech-savvy users, please, this is urgent. For the time being, I am using Windows Media Player.