Archived posting to the Leica Users Group, 2010/09/20
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]On Mon, Sep 20, 2010 at 4:46 PM, John Nebel <john.nebel at csdco.com> wrote: > Sonny, > > OK, I'll byte. > That's fine, and I'll agree the theoretical life is amazing, and I don't doubt that the stuff will hold on to the information. Probably if you leave the sd card in situ in the camera, and pipe the info out through the usb, it will have near eternal life. But what happens in real life, for me at least, is that I shoot for a day, maybe 50-100 shots, (sometimes only ten shots for a Friday Flower) pull out the card, and stick it into a reader slot. I take down the pix, and stick the card back into my computer. Remember, for my M8, on an 8 gig card, I have in excess of 1000 pictures at full rez in raw. I might delete a few here and there, but I don't quit until I have the card at about 850, maybe 900 shots. Now, there's wear and tear on the contacts, the plastic case of the SD card is not exactly bulletproof, and I'm loading the card into two different computers and a camera. No white paper can convince me that trash don't happen in these real life circumstances. The cards are cheap enough that I retire them after I fill one. I don't reformat anymore. I once did, but I got burned twice. Once the card was corrupted, and the other time it fell in half. bad glue. That was two times too many. Thanks for the papers. They are interesting. Maybe the engineers need to also be photographers. > > http://tinyurl.com/rf67m > > I think SD cards should be quite reliable, anecdotal evidence aside. Maybe > one should expect an 80 year lifetime? > > I liked http://www.storagesearch.com/ssdmyths-endurance.html - the math > department run amok takes 50+ years to destroy a flash device? > > John > > PS > > I think about this every time I type "wr" in a Cisco switch or router and > write something out to the dreaded FLASH. > > On 9/19/2010 10:52 PM, Sonny Carter wrote: > >> On Sun, Sep 19, 2010 at 11:37 PM, Daniel Tan<taniel.dan at gmail.com> >> wrote: >> >> I was under the impression that in some circles, it's standard practice >>> to >>> format your card each time you clear it (ie, download onto your >>> computer). >>> >>> >> Well yes. but when you overwrite the media too many times, you run the >> risk of leaving digital debris. I personally would not reformat more than >> three times. >> >> I'll probably be proven wrong by someone who can cite technical stuff and >> have never had a problem because they are speaking theoretically. >> >> I only speak from experience. >> >> >> > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > -- Regards, Sonny http://sonc.com/look/ Natchitoches, Louisiana USA