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#81
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Memory cards reliable enough?
Tony Cooper wrote:
On Sun, 12 Jul 2015 04:53:24 -0500, philo wrote: On 07/11/2015 03:01 PM, Alfred Molon wrote: In the past it used to be so that you could not trust memory cards, so you would not use too large sizes, to avoid losing all images in case of a malfunction. But I get the impression that nowadays memory cards are very reliable, so you could in principle put a 256GB memory card into the camera, and only use that for an entire trip. Any thoughts about this? I have a 32gig card in one camera and a 64gig in the other and can shoot for months on a card. Why? Serious question. After I download the images from my card to my computer I format the card. It seems that what you do is leave the images on the card and continue to shoot. I don't see any advantage to that. Am I missing something? .My PC crashed and self-destructed, and all those pix are not accessible from the PC.. I still have the images on my SD cards, which I then backed up onto another PC. The cards are so cheap these days, and are virtually indestructible. (I also have an external H.D. backup, of course.) Mort Linder Never had a problem with one but I copy the images to several different computers on a regular basis If redundancy is the goal, it's not necessary to retain the images on the card. They can be copied to other devices other ways. |
#82
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Memory cards reliable enough?
In article .at,
Anonymous Remailer (austria) wrote: I wonder if you're not prematurely ageing your card by doing that. Why not just delete the files, or have them automatically deleted after you move them to the mdeia you're backing them up to? Likely a format requires fewer writes, reducing the total write load on the card, thus extending its life. The format doesn't need to process each file individually. neither does a delete. it just marks a file as deleted in the catalog while formatting rewrites the entire catalog. the difference is not significant and the number of writes is huge anyway. nobody is going to wear out a card in normal use. Oh, that sounds like the kind of quote that comes back to haunt one. If "normal use" is light use then maybe, but if someone is taking photographs, or using the card for whatever type of storage, every day, and using a significant amount of the card each time, then I think they might run into the limitations of the technology. You might call that "heavy use" rather than "normal use," but it's something that some of us do. nobody does. you'd have to hammer the card every single day for many years to get anywhere close to the limit. even pros who shoot thousands of photos a day won't hit it. |
#83
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Memory cards reliable enough?
In article , Mort
wrote: consider getting a portable storage device to offload the images, assuming you don't want to bring a laptop. There is available a small walkman-sized device that runs on AA NiMH cells. You put the camera's SD card into it,and a blank CD-R , and it burns the images onto the CD. It is fast and easy. cds?? seriously?? burning a cd is neither fast nor easy. it's slow, clunky and primitive. a much better choice is a hard drive based device which can hold zillions of images. copying is fast and without needing to chop it up into cd-sized chunks. plus, you don't need to carry a box of blanks either. I use SanDisc SD cards, usually 8 GB, and in using hundreds for both music and images, I have had only one failure. 8 gb = over a dozen cds. In addition, on a field shoot,or a trip, each night I back up images to my travel PC's solid state memory. My biggest fear is putting all that stuff into a basket at the airports' security screening.JFK is infamous for pairs of crooks stealing stuff from the baskets after being examined by the TSA. put that stuff *inside* your carryon. there's never a reason to use those baskets. |
#84
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Memory cards reliable enough?
In article , Mort
wrote: .My PC crashed and self-destructed, and all those pix are not accessible from the PC.. unless it exploded, they're accessible. |
#85
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Memory cards reliable enough?
In article
nospam wrote: In article .at, Anonymous Remailer (austria) wrote: I wonder if you're not prematurely ageing your card by doing that. Why not just delete the files, or have them automatically deleted after you move them to the mdeia you're backing them up to? Likely a format requires fewer writes, reducing the total write load on the card, thus extending its life. The format doesn't need to process each file individually. neither does a delete. it just marks a file as deleted in the catalog while formatting rewrites the entire catalog. the difference is not significant and the number of writes is huge anyway. nobody is going to wear out a card in normal use. Oh, that sounds like the kind of quote that comes back to haunt one. If "normal use" is light use then maybe, but if someone is taking photographs, or using the card for whatever type of storage, every day, and using a significant amount of the card each time, then I think they might run into the limitations of the technology. You might call that "heavy use" rather than "normal use," but it's something that some of us do. nobody does. you'd have to hammer the card every single day for many years to get anywhere close to the limit. even pros who shoot thousands of photos a day won't hit it. You are more trusting than I. |
#86
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Memory cards reliable enough?
In article s, Jack
Ryan wrote: you'd have to hammer the card every single day for many years to get anywhere close to the limit. even pros who shoot thousands of photos a day won't hit it. You are more trusting than I. it's not a matter of trust. they're rated for a *lot* of writes. |
#87
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Memory cards reliable enough?
On 7/25/2015 9:20 AM, nospam wrote:
In article s, Jack Ryan wrote: you'd have to hammer the card every single day for many years to get anywhere close to the limit. even pros who shoot thousands of photos a day won't hit it. You are more trusting than I. it's not a matter of trust. they're rated for a *lot* of writes. Indeed, they are. Just beware of fake and "knockoff" cards, and you'll be all right. John |
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