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I am looking at Nexto DS2730 as a portable backup for photos and videos taken with my Canon EOS 7D on CompactFlash memory cards.
Having googled and learned portable photo storage (PPS) could modify raw files when a PPS copies/imports the files, I'll appreciate any answer with first-hand experience.
Based on the description of the product on the product page it appears to copy the files exactly. You can see it mentions the "Copy & Verify" feature which checks that they are a bit for bit match.
