Edit: Never mind...
It's the 4GB FAT32 file limitation, isn't it?
Been there. Done that.
I attempted to copy a video file that I created from Adobe Premiere onto a 16 GB Sandisk flashdrive.
I received the same error.
Yes, it is the 4GB FAT32 file size limitation.
Rather than attempting to format the flashdrive to NTFS, I purchased a USB HD enclosure.
Please let me know if you were able to successfully reformat your flashdrive to NTFS. I was afraid that I would corrupt (and render useless) a brand-new expensive 16GB flashdrive.