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Title: Utterly unreliable
Review: Although I had no trouble with the 512k version, BOTH the originally purchased 1GB unit AND the replacement obtained (after much nonsensical folderol evidently designed only to discourage returns of defective merchandise) failed without warning within a few months' use. The company has refused to issue a credit or reimbursement, but did offer to provide a third unit without going through the previous completely illogical "diagnostic" procedures.
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