Yeah, My bad - my brain was searching for FAT and for some reason it
came up with MBR. I knew it didn't sound right....must be getting old.
Norm Higgs
http://forbiddenpc.com
http://forbiddenpc.blogspot.com
http://www.power-blog.com/info/4365
http://freetrafficbar.com?r=74276
On 2011-06-04 6:30 PM, David Ron wrote:
> I'm splitting hairs here... Format doesn't touch the MBR. There is only
> one MBR per disk, but there may be several partitions on a disk - each
> of which may be formatted separately. Formatting does the following:
>
> 1. The FAT<http://en.wikipedia.org/wiki/File_Allocation_Table>
> entries are cleared by changing them to 0x00.
> 2. The root directory<http://en.wikipedia.org/wiki/Root_directory>
> is cleared out by changing any values found to 0x00.
> 3. Format then checks each cluster
> <http://en.wikipedia.org/wiki/Cluster_%28file_system%29> to see if
> it is good or bad and marks it in the FAT.
>
> ( Source: http://en.wikipedia.org/wiki/Format_%28command%29 )
>
> The FAT (File Allocation Table), root directory, and all of the clusters
> are conceptually inside of the partition, while the MBR is outside of
> any partition. Numbers 2 and 3 are optional, and are turned off when
> you do a "quick format". Also, the "system" option will install a "boot
> volume record", is sometimes confused for the MBR, but it also exists
> inside of the partition and is not the MBR.
>
> If you want to change the MBR, you would need to use a partition
> management utility such as FDISK. Many modern partition management
> utilities will both format and re-partition a disk, which may appear to
> affect the MBR during a format, but they are separate and distinct
> operations.
>
> --David
>
>
>
> On 06/04/2011 12:34 PM, Norm Higgs wrote:
>> Formatting only writes to the MBR, not the entire drive.
>>
>> Norm Higgs
>> http://forbiddenpc.com
>> http://forbiddenpc.blogspot.com
>> http://www.power-blog.com/info/4365
>> http://freetrafficbar.com?r=74276
>>
>> On 2011-05-30 7:01 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
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>>>>>> on the Internet.
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>>>>>>
>>>>>> Yahoo! Groups Links
>>>>>>
>>>>>>
>>>>>>
>>>> [Non-text portions of this message have been removed]
>>>>
>>>
>>>
>>> ------------------------------------
>>>
>>> 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]
>
>
>
> ------------------------------------
>
> 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
>
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