File transfer problem on a WD 120G Passport

I just bought a new WD Passport to backup my ITunes library. I want to copy a 8g file to the passport in order to bring it to a friend's house but I always get an error message saying that I don't have enough space on the drive. The probleme is that it's brand new and I still have about 110g free space. I"m guessing that my windows xp isn't seeing that I have enough space or not recongnizing the available space on the drive... All my drivers are ok and in my hardware profile, everything is working fine.

 Any help would be greatly appreciated, specially since I'm going to my friend's house tomorrow and would really like to bring the file ;)

Thanks!

You can format in NTFS for a slight performance degrade, and will eliminate that issue, and it will also erase everything on the headdrive, right click on it > format NTFS

Fat32 is faster than ntfs and uses alot less cpu resources, but NTFS has alot better security, and can handle more than 4 gigs You can split your informat by raring the files in 2 seperate files. 

Thanks guys, it worked :D

I really forgot about the NTFS format.