When it was developed, that size file was almost unheard of but now, a DVD can have files that large or larger routinely. FAT32, for example, can only handle files up to 4GB in size.
These file systems differ in the size of file they can handle. Windows XP allows you to format a hard disk in two different file system formats: FAT32 and NTFS. The most likely cause for this is not some sort of copy protection but that the file being copied is too large for the file system to handle. In these days of extra large hard disks many try to copy large files from a DVD but find that can’t even though there is plenty of free space on the hard disk.
