Re: [Simply Computers] SD Cards ReFormat

 

A typical camera "format" doesn't actually write over the contents of the drive. Instead, it changed a few bytes that demarcate the File Allocation Table (FAT) so that the table that allows the computer to find the rest of the data is reset to make the drive appear completely blank. After formatting, all of your data is still present on the drive (unchanged), but the computer assumes it's all just garbage empty space that can be overwritten. It should last just as long as if you deleted the files directly.

--David

On 05/30/2011 07:01 AM, tom wrote:
>
> I gather that it is not a good idea to defrag SD cards but what happens every time you re format as I do when I finish downloading the one in my camera? How long would it be expected to last?
> Tom
>
> --- In simplycomputers2@yahoogroups.com <mailto:simplycomputers2%40yahoogroups.com>, David Ron <david.m.ron@...> wrote:
> >
> > Not just that, but they would also have to write over the entire drive.
> > There is circuitry to spread write operations over the entire drive so a
> > single file or folder can be rewritten far more times than that.
> >
> > - David
> > On May 26, 2011 11:11 AM, "Bill Aycock" <billaycock@...> wrote:
> > > Why should we worry? To do this, one would have to write 55 times a day,
> > > every day, for 5 years.
> > > Bill--W4BSG
> > >
> > > ----- Original Message -----
> > > From: "barry" <michiguru@...>
> > > To: <simplycomputers2@yahoogroups.com <mailto:simplycomputers2%40yahoogroups.com>>
> > > Sent: Thursday, May 26, 2011 11:09 AM
> > > Subject: [Simply Computers] SD Cards
> > >
> > >
> > >> Is it true that SD cards can only be written 100K times?
> > >>
> > >> Thanks.
> > >>
> > >>
> > >>
> > >>
> > >> ------------------------------------
> > >>
> > >> Visit Simply Computers Tech Support Group and Helpdesk (24x7). Providing
> > >> 100% free Computer Tech Support since 1999. With over 12,000 members
> > >> Simply Computers is one of the largest and most active Tech Support
> > Forums
> > >> on the Internet.
> > >> http://tech.groups.yahoo.com/group/simplycomputers2
> > >>
> > >> Yahoo! Groups Links
> > >>
> > >>
> > >>
> > >
> >
> >
> > [Non-text portions of this message have been removed]
> >
>
>

[Non-text portions of this message have been removed]

__._,_.___

Reply to sender | Reply to group | Reply via web post | Start a New Topic

Messages in this topic (8)

Recent Activity:

• New Members 23

Visit Your Group

Visit Simply Computers Tech Support Group and Helpdesk (24x7). Providing 100% free Computer Tech Support since 1999. With over 12,000 members Simply Computers is one of the largest and most active Tech Support Forums on the Internet.
http://tech.groups.yahoo.com/group/simplycomputers2

Switch to: Text-Only, Daily Digest • Unsubscribe • Terms of Use

.

__,_._,___