I've just discovered this little trick and i find it extremely useful as i'm carrying quite big files with myself on my USB flash drives on a daily basis! Use this trick if you would like to copy a file bigger than 4GB in one single piece onto your USB flash drive. Because of the FAT32 file system, you cannot do it. But if you format your flash drive to NTFS file system, you'll be able to copy files bigger than 4GB in one piece onto your flash drive w/o any problem. Q: How do I format a USB Flash Drive to NTFS file system? A: To enable NTFS on your USB Flash Drive drive (USB Flash Memory): 1. Right click My Computer and select Manage. 2. Open the Device Manager and find your USB drive under the Disk Drives heading. 3. Right click the drive and select Properties. 4. Choose Policies tab and select the "Optimize for performance" option. 5. Click OK. 6. Open My Computer. 7. Select Format on the flash drive. 8. Choose NTFS in the File System dropdown box. 9. Hit Start. 10. Device Formatting is completed. Important: To remove a device safely without data loss use a "safely remove hardware" procedure or Eject function from Windows Explorer. This guide seems to be written for Windows XP, but i guess it can be done similarly on other Windows OS as well. You can find the illustrated howto on the following url: Code: http://www.ntfs.com/quest22.htm Or Just use hjsplit to cut files bigger than 4GB into smaller pieces, if you decide to continue using FAT32 on your USB flash drives.