Do SD/MMC memory slots need driver updates to read SDHC memory cards?

Rod Speed wrote:
ken wrote:
Rod Speed wrote:
ken wrote:
I have just purchased a Canon digitalcamera. I have an 8GB HP SD
High Capacity memory card that I have used but with some problems. Like the 32MB card that came with the camera, the
8 GB memory card
is formatted in RAW.

When I remove the 8 GB SDHC card from the camera and put it into my
3 year old laptop, the card is recognized in but not any files on
the disk. In Explorer there is a Removable SD/MMC drive
assignment, but when I click on the drive, I receive a message that
the drive is not accessible and that the network resource type is
not correct. When I check Properties, it shows 0 bytes!! Yet,
when I put the card in a USB receiver and look at it in Explorer,
then the card is recognized as 8 GB and the picture files are
shown, as well as the appropriate directories..! I am trying to
figure if it is an issue with the operating system, the SD HC
memory card, or the computer SD/MMC slot. Does anyone have any info?
Thats a very common result when the laptop card reader
cant handle cards bigger than it was designed to handle.


Hmmmm.... So how does one determine how large a card an internal card reader can read?

The only real way is to try them and see.


OK. I was able to contact the retailer who sold me the laptop, who
contacted the manufacturer, who said that the SD/MMC socket only handles
SD memory cards, which is what was mentioned by Ian D, so I will order a
2GB card.

Many thanks to all who participated.

Ken K

"kenk" wrote in message
...
| Rod Speed wrote:
| ken wrote:
| Rod Speed wrote:
| ken wrote:
| I have just purchased a Canon digitalcamera. I have an 8GB HP SD
| High Capacity memory card that I have used but with some problems.
Like the 32MB card that came with the camera, the
| 8 GB memory card
| is formatted in RAW.
|
| When I remove the 8 GB SDHC card from the camera and put it into my
| 3 year old laptop, the card is recognized in but not any files on
| the disk. In Explorer there is a Removable SD/MMC drive
| assignment, but when I click on the drive, I receive a message that
| the drive is not accessible and that the network resource type is
| not correct. When I check Properties, it shows 0 bytes!! Yet,
| when I put the card in a USB receiver and look at it in Explorer,
| then the card is recognized as 8 GB and the picture files are
| shown, as well as the appropriate directories..! I am trying to
| figure if it is an issue with the operating system, the SD HC
| memory card, or the computer SD/MMC slot. Does anyone have any info?
| Thats a very common result when the laptop card reader
| cant handle cards bigger than it was designed to handle.
|
|
| Hmmmm.... So how does one determine how large a card an internal card
reader can read?
|
| The only real way is to try them and see.
|
|
| OK. I was able to contact the retailer who sold me the laptop, who
| contacted the manufacturer, who said that the SD/MMC socket only handles
| SD memory cards, which is what was mentioned by Ian D, so I will order a
| 2GB card.
|
| Many thanks to all who participated.
|
| Ken K

Check with your laptop manufacturer on a possible update for your card
reader that will let your laptop accept SDHC cards. I had that problem with
my laptop purchased in 2007 but was able to update it.

"Ian D" wrote in message
...
|
| "ken" wrote in message
| ...
| Grant wrote:
| On Mon, 23 Feb 2009 22:04:33 -0800, ken wrote:
|
| Rod Speed wrote:
| ken wrote:
| I have just purchased a Canon digitalcamera. I have an 8GB HP SD
High
| Capacity memory card that I have used but with some problems. Like
| the 32MB card that came with the camera, the 8 GB memory card is
| formatted in RAW.
|
| What's RAW? SDHC is FAT32.
| When I remove the 8 GB SDHC card from the camera and put it into my
3
| year old laptop, the card is recognized in but not any files on the
| disk. In Explorer there is a Removable SD/MMC drive assignment, but
| when I click on the drive, I receive a message that the drive is not
| accessible and that the network resource type is not correct. When
I
| check Properties, it shows 0 bytes!! Yet, when I put the card in a
| USB receiver and look at it in Explorer, then the card is recognized
| as 8 GB and the picture files are shown, as well as the appropriate
| directories..! I am trying to figure if it is an issue with the
| operating system, the SD HC memory card, or the computer SD/MMC
slot.
|
| Does anyone have any info?
| Thats a very common result when the laptop card reader
| cant handle cards bigger than it was designed to handle.
|
| Hmmmm.... So how does one determine how large a card an internal card
| reader can read?
|
| SD/MMC is not the same as SDHC, though an SDHC enabled device can work
| with SD/MMC, see your camera manual. Grant.
| RAW, as I understand it, is the format for camera images (raw image
data).
| The SD/MMC designation is the designation of the SD/MMC socket and it is
| how the socket/"drive" shows up in Explorer.
|
| So how does SDHC differ from SD? If there is a difference, then perhaps
I
| can solve this by just purchasing an SD memory card of the same size,
| which would be fine with me.
|
| The Canon manual says I can use SD, SDHC cards, and MMC cards so that
| would imply that the problem is either in the limitations, if any, of my
| SD/MMC socket or in the OS. Does anyone know if there are new drivers
| needed to read/recognize an SDHC card in Windows XP?
|
| Here is what the manual says about memory:
|
|
| Thanks
| Ken K
|
| The maximum memory size for an SD card is 2GB. Anything
| over that requires an SDHC card.

Not quite true. Before the transition to SDHC, some manufacturers sold 4GB
SD cards; I have two of them that I use in my Canon A620.

The cards are externally
| physically identical. SD cards are 16 bit FAT. That's why
| there's a 2GB limit. SDHC cards are FAT32.
|
| Camera RAW has nothing to do with file structure. It's a picture
| file format in which data is transferred directly from the camera's
| image sensor array to the storage card without any internal
| processing. To use the images you need a RAW converter to
| read the particular camera's RAW files.
|
|

"kenk" wrote in message ...
Rod Speed wrote:
Hmmmm.... So how does one determine how large a card an internal card reader can read?

The only real way is to try them and see.


OK. I was able to contact the retailer who sold me the laptop, who
contacted the manufacturer, who said that the SD/MMC socket only handles
SD memory cards, which is what was mentioned by Ian D, so I will order a
2GB card.

It it cheaper in the long run to spend $10-20 on an external USB card reader.

"iws" wrote in message ...
"Ian D" wrote in message
|
| The maximum memory size for an SD card is 2GB. Anything
| over that requires an SDHC card.

Not quite true. Before the transition to SDHC, some manufacturers sold 4GB
SD cards; I have two of them that I use in my Canon A620.

FAT16 supports 4GB. However, you are talking about hardware limitations.

Eric Gisin wrote:
"kenk" wrote in message
...
Rod Speed wrote:
Hmmmm.... So how does one determine how large a card an internal
card reader can read?

The only real way is to try them and see.

OK. I was able to contact the retailer who sold me the laptop, who
contacted the manufacturer, who said that the SD/MMC socket only
handles SD memory cards, which is what was mentioned by Ian D, so I
will order a 2GB card.

It it cheaper in the long run to spend $10-20 on an external USB card
reader.
It works in a cheap-0 $4 USB SD card reader that I purchased from
Meritline. You are correct!