Formatting SD cards...FAT16 or FAT32? - General Chat - CHDK Forum
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Formatting SD cards...FAT16 or FAT32?

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Offline gabriele

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Formatting SD cards...FAT16 or FAT32?
« on: 30 / March / 2008, 07:27:51 »
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I've bought recently a 4GB TakeMS HyperSpeed 133x card, I'm not sure if it's fake so I just contacted the customer service.
Beside this I have tried to format it in FAT16 instead of using the standard FAT32, I had to do this via command line since normally FAT16 isn't supported on discs bigger than 2GB.
Can formatting a 4GB card using the FAT16 filesystem lead to some problems or file loss?
I've noticed a speed performance improving using FAT16 in place of FAT32 as u can see here:

      TakeMS HyperSpeed 133x, 4GB (FAT16)     6458     6942     4602     6606
     TakeMS HyperSpeed 133x, 4GB (FAT32)    4278    6144    5217    8233

I was expecting higher speeds for a 133x card.
Both the test were made with a freshly formatted card, the camera used is a PowerShot A630 with the latest AllBest build allbest-a630-100c-49
Any advice?
« Last Edit: 30 / March / 2008, 07:31:08 by gabriele »
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Offline GrAnd

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Re: Formatting SD cards...FAT16 or FAT32?
« Reply #1 on: 30 / March / 2008, 09:53:55 »
Quote from: gabriele on 30 / March / 2008, 07:27:51
Can formatting a 4GB card using the FAT16 filesystem lead to some problems or file loss?
Can. :)
But nobody has faced with any problem yet.  8)
Therefore, the conclusion is "Can't".  ::)
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Offline carlos

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Re: Formatting SD cards...FAT16 or FAT32?
« Reply #2 on: 30 / March / 2008, 10:24:11 »
Quote from: GrAnd on 30 / March / 2008, 09:53:55
...... nobody has faced with any problem yet.

Thanks for all you do, GrAnd!

Is everybody getting full (~4GB) capacity with FAT 16? I read somewhere to expect only 2GB.

Best,

carlos
« Last Edit: 30 / March / 2008, 12:51:36 by carlos »
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Offline Barney Fife

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Re: Formatting SD cards...FAT16 or FAT32?
« Reply #3 on: 30 / March / 2008, 22:22:50 »
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« Last Edit: 22 / April / 2008, 15:21:20 by Barney Fife »
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Offline carlos

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Re: Formatting SD cards...FAT16 or FAT32?
« Reply #4 on: 30 / March / 2008, 22:55:48 »
Thanks Barney!

Also, extra thanks for your constant informative and entertaining posts.

carlos
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Offline Barney Fife

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Re: Formatting SD cards...FAT16 or FAT32?
« Reply #5 on: 30 / March / 2008, 23:39:48 »
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« Last Edit: 22 / April / 2008, 15:21:38 by Barney Fife »
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Offline Steveo

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Re: Formatting SD cards...FAT16 or FAT32?
« Reply #6 on: 31 / March / 2008, 07:26:24 »
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Offline Barney Fife

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Re: Formatting SD cards...FAT16 or FAT32?
« Reply #7 on: 31 / March / 2008, 08:06:08 »
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« Last Edit: 22 / April / 2008, 15:21:56 by Barney Fife »
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Offline Jimmy Havok

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found a formatting tool
« Reply #8 on: 12 / September / 2010, 02:10:05 »
I'm using the D10 beta, and it doesn't support card formatting as yet (as far as I can tell) so I went looking for another method.  I found MiniTool Partition Wizard Home Edition http://www.partitionwizard.com/partition-manager/sd-partitions.html, which seems to have done the trick on the 8Gb I'm using.

Still haven't gotten D10 beta to boot, though, gotta spend some more time with it.

http://www.partitionwizard.com/partition-manager/sd-partitions.html
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Offline powershots80

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Re: Formatting SD cards...FAT16 or FAT32? on sdhc
« Reply #9 on: 23 / September / 2010, 04:03:11 »
Has anyone tried to partition a 8Gb SDHC card into 2 4gb spaces?  Would I be able to format the 1st partition in FAT16 mode and force it to be bootable?

Does anyone know if I can change the location of where CHDK will write the images to the 2nd partition?

I have been using 4Gb Non-HC SD cards formatted at FAT16 for my Powershot S80 fine but my SD cards are started to die and
replacements are hard to find.

Thanks for any help!
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