Hello Mark, I have the older 6A version - it doesn't have the verify after write like yours does, so I cannot answer to that. I would think, though, that it uses twice the power for that mode as it has to do a read from card and then write to disk and then verify with a read from card and read from disk. So if battery life is of concern, that could be an issue.
I have never tried mine with anything but NiMH batteries and usually at least 2100 - but mostly Energizer 2500's. The way you wrote this almost sounds like you are leaving the unit turned on after transfers - I'm assuming you turn it off in between. -- Best regards, Bruce Saturday, February 17, 2007, 8:11:26 PM, you wrote: MC> I finally got around to ordering a Compactdrive 70x as a portable MC> storage device. I wound up buying one with an "80" gigabyte drive (80 MC> million bytes, 74 megabytes, but who's counting...) MC> If anyone here is using a similar setup - a couple of questions. MC> First, the verified write mode does not seem to work at all with SD MC> cards. (That's the mode where the drive reads and verifies each file.) MC> It terminates after the first file with a verification error. It works MC> fine with CF Cards though. I have three brands of SD cards (SanDisk MC> Ultra III, Transcend, and Dane Elec) and it works with none of these. Is MC> anyone else using this mode with SD cards? I'm wondering if I got a bum MC> unit. Non-verified transfers from SD cards work fine, BTW. MC> Second - batteries. I bought this because it is supposed to work with 4 MC> AA batteries, but my NiMH batteries seem to work on a fresh charge for a MC> short while, but if they sit in the device for just a few hours they MC> can't put out enough voltage. The drive poops out with a #19 error, MC> which means no hard drive present. Oddly, it's not the #20, "Bad MC> Batteries" error. But fresh batteries (or using the power supply) fix MC> the problem, and checking the batteries is recommended in the manual for MC> this error. MC> These batteries are 1800 mAh Energizer brand, bout about 3 months ago. MC> Granted - they have seen little use since I got them, and I'm in the MC> process of completely draining and recharging them for a couple of MC> cycles to see if that helps (over the last few months they have been MC> charged, died with no use, recharged, a few times.)But I wonder if the MC> Compactdrive can run off regular AA alkaline batteries or lithiums? The MC> manual states that it is intended to work with NiMH rechargeable, but MC> never says not to use alkalines. I also wonder if the large HD is MC> draining more juice than a smaller drive would, and is dropping the MC> battery voltage during power up and self test... MC> Any thoughts on these problems would be appreciated. I bought a fresh MC> set of NiMh batteries and they are in there charging now, so maybe that MC> will solve the battery issue. MC> - MCC MC> -- MC> - - - - - - - - - - - - - - - - - - - - MC> Mark Cassino Photography MC> Kalamazoo, Michigan MC> www.markcassino.com MC> - - - - - - - - - - - - - - - - - - - - -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
