I have been using Teracopy to verify and the large movie files show artifacting after transfer and fail checksum, small files do not fail, only large files seem to. When I transfer files off the external hard drive no such failure of checksums occur on any of the files. Could this be a bad cable, or maybe a bad external interface or e-sata interface on my computer?
I have tried two interfaces for e-sata, one with a PCI card the other on the motherboard, both with similar results, so what maybe the reason if a bad hard drive or external case maybe the problem?