Unable to transfer files from external hard drive

Unable to transfer files from external hard drive

Problem:
I'm trying to transfer about 168 GB of files from an old Windows XP
machine to a newer MacBook Pro running OS X 10.6.8.
I successfully copied the files from the XP machine onto a 2TB Seagate
drive, formatted as NTFS.
I opened the Seagate drive on the Mac and started copying the files.
Though the drive is read-only because it is NTFS, all I need to do is copy
files off of it.
About 15% into the transfer, a message pops up saying "The operation can't
be completed because an unexpected error occurred. (Error -8084)" and the
transfer stops. This has happened multiple times.
What I've tried to fix the problem:
I tried transferring one of the sub-folders of the backup, also resulting
in an error, though this one was different. It was something like: "The
process has been stopped because a file is in use." It then said the name
of the file. I tried this second process twice; each time it gave a
different file name.
In both cases, some of the files transfer properly, but most don't.
I have tried disabling Spotlight for the drive, but that didn't help.