like you are suggesting.
FAT32 and NTFS refers to the format of the drive itself and not the files that are on them.
My backup's on a HP with Vista to a usb Verbatim drive will not reload on the new disc drive. I suspect a problem with the File Format. Can I convert the FAT32 Verbatim files to the Vista NTFS files for recovery. How do I verify each of these formats on the discs?

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