Itunes Freeze during sync

Hi there,
Im operating Windows Vista on a Dell Inspiron e1505 and a 5th generation Ipod 80gb Classic with the latest version of Itunes(9.0.2). I've encountered this problem numerous times and have searched many different locations for an answer. Hopefully someone can provide an answer, or tell me I'm out of luck.
With the amount of music I have I don't have the capacity on my Hard Drive to store it all. Therefore, I choose to manually sync my ipod. However, as I'm syncing, whenever I near 4000 songs on my ipod, Itunes freezes indefinitely, at which point I am forced to disconnect the ipod only to see that all of the music is wiped clean. This occurs during the period where itunes is "determining gapless playback information" of the songs I have just chosen to sync. This occurs whether I have chosen to sync 1 song at a time or 250 songs. The deciding factor is the nearing of 4000 songs.
I've looked around and from what I can determine the answer may lie in the fact that not enough of the "computer's power" is directed to the syncing process; too many background applications perhaps. I've tried turning off anything unnecessary and I run with minimal programs.
Thanks in advance for any help, I'll be happy to try to answer any questions.
Message was edited by: Local_Thinker

This occurs during the period where itunes is "determining gapless playback information" of the songs I have just chosen to sync. This occurs whether I have chosen to sync 1 song at a time or 250 songs. The deciding factor is the nearing of 4000 songs.
That sounds like it might be a library file issue with your iTunes.
If you recreate your iTunes library, are you able to get past the 4000 song barrier when you sync?
[How to re-create your iTunes library and playlists|http://support.apple.com/kb/HT1451]

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firstly, i would like to thank all you kind souls who post to this forum with very helpful suggestions. you have helped me with many past difficulties.
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Okay, I got it to work tonight...
My U2 iPod would freeze while syncing. I restored and tried to sync and it would freeze on different song #'s. All the while I heard a clicking sound coming from the drive that I never noticed before. It would just click once in a while, not repeatedly.
My fix: (a version of the carpet drop) While the iPod was on and spinning, I held it tight with my right hand, facing me and smacked it's side into the palm of my left hand, simulating the amount of force that it would incurr from a waist-high drop onto carpet.
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By the way, the problem started after being left out in the car on recent cold nights... hmmmm, my iPod thinks me a jerk.
Anyways, here are some previous attempts at fixing my situation (in no particular order):
1) restored from 5 different iPod updates (2004-11-15, 2005-02-22, 2005-06-26, 2005-09-23, 2005-11-17)
2) tried to fix with Disk Utility
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PB-15"Al; G4-DP500 Mac OS X (10.4.3)

Itunes Freeze during sync

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