Greetings to all -
I'd like to get some recommendations for Compact Flash cards.
In order of importance, they need to address the following:
1. Stability
2. Speed
3. Price

We were using 512MB Sandisk Ultra II's for a quite a while, and they are
hard to find now in comparison to the 1GB's - however we are finding the
1GB's to have a marked performance decrease.

Any information would be sincerely appreciated.
--Bill

"Bill" <(E-Mail Removed)> wrote:

>We were using 512MB Sandisk Ultra II's for a quite a while, and they are
>hard to find now in comparison to the 1GB's - however we are finding the
>1GB's to have a marked performance decrease.

We are also using Sandisk Ultra II in 512MB, 1 and 4GB, with good
results. Important for us is good support of DMA mode (actually we had
to modify our card sockets with a wire jumper to enable DMA) and the
tool to set them as fixed disk.

But I can agree that the 512MB looks a bit faster than the 1GB...

>Any information would be sincerely appreciated.
>--Bill

Ralph.

"Bill" <(E-Mail Removed)> wrote in news:#3#(E-Mail Removed):

> Greetings to all -
> I'd like to get some recommendations for Compact Flash cards.
> In order of importance, they need to address the following:
> 1. Stability
> 2. Speed
> 3. Price
>
> We were using 512MB Sandisk Ultra II's for a quite a while, and they are
> hard to find now in comparison to the 1GB's - however we are finding the
> 1GB's to have a marked performance decrease.
>
> Any information would be sincerely appreciated.
> --Bill

We switched from Sandisk Ultra II to Lexar Platinum II's - 80x. The Lexars
were substantially faster, and the price was about the same. We haven't had
stability issues with either brand.

Judah <(E-Mail Removed)> wrote:

>We switched from Sandisk Ultra II to Lexar Platinum II's - 80x. The Lexars
>were substantially faster, and the price was about the same. We haven't had
>stability issues with either brand.

Is there a tool available switching them into fixed disks? And do they
support DMA?

"Ralph A. Schmid, dk5ras" <(E-Mail Removed)> schrieb im Newsbeitrag
news:(E-Mail Removed)...
> Judah <(E-Mail Removed)> wrote:
>
>>We switched from Sandisk Ultra II to Lexar Platinum II's - 80x. The Lexars
>>were substantially faster, and the price was about the same. We haven't
>>had
>>stability issues with either brand.
>
> Is there a tool available switching them into fixed disks? And do they
> support DMA?


How about these:
http://www.transcend.de/products/Mod...=-99&LangNo=20
They support UDMA and are very reasonable in price for a industrial card.

FRanz

Un bel giorno Ralph A. Schmid, dk5ras digitò:

>>We switched from Sandisk Ultra II to Lexar Platinum II's - 80x. The Lexars
>>were substantially faster, and the price was about the same. We haven't had
>>stability issues with either brand.
>
> Is there a tool available switching them into fixed disks? And do they
> support DMA?

Can someone explain to me what is this thing of removable/fixed disks? I've
used a lot of different CF with XPE, not doing anything particular to
switch them as fixed disk, and I've never had a problem.

--
emboliaschizoide.splinder.com

On Mon, 26 Feb 2007 13:15:21 +0100, dalai lamah wrote:

>
> Can someone explain to me what is this thing of removable/fixed disks? I've
> used a lot of different CF with XPE, not doing anything particular to
> switch them as fixed disk, and I've never had a problem.
>

In my opinion there are several problems in using CF in removable mode.
First of all, if you need it, you can't have pagefile. You cannot partition
the drive so you can't setup an OS partition and a "data" partition and
protect only the first one with EWF. Another limitation I found is that the
SMTP server warn you for the fact of setting up log files on a removable
drive.

Ricky

Un bel giorno Ricky digitò:

> In my opinion there are several problems in using CF in removable mode.
> First of all, if you need it, you can't have pagefile.

Hmmm, creating a pagefile on a CF doesn't sound as a good idea anyway.

> You cannot partition
> the drive so you can't setup an OS partition and a "data" partition and
> protect only the first one with EWF.

Probably fdisk can't do that (as well as a lot of other things), but I
don't see any technical reason to make it impossible. IIRC the partition
editor of Drivesnapshot can do that, but I should check.

--
emboliaschizoide.splinder.com

On Tue, 27 Feb 2007 12:59:04 +0100, dalai lamah wrote:

>
> Hmmm, creating a pagefile on a CF doesn't sound as a good idea anyway.
>

I agree. But I was only speaking on limitations.

>
> Probably fdisk can't do that (as well as a lot of other things), but I
> don't see any technical reason to make it impossible. IIRC the partition
> editor of Drivesnapshot can do that, but I should check.
>

Disk management of XPe can't do this. I don't know if other apps can.

Ricky

P.S. Are you italian?

XP and XPe can only see one partition on a removable disk. The problem used
to be when trying to implement EWF to protect the flash life.



Most CF cards don't have wear-leveling technology. XP likes to perform lots
of reads and writes to the drive (erase cycles), which can affect the life
of the flash. To protect the life of the flash you can use EWF or FBWF. Back
when we only had EWF, EWF want to create a second partition for the EWF
volume. Since most CF cards are ID'd as removable, one had to trick EWF into
RAM-REG overlay mode so a second partition is not create. This has been a
known and well discussed problem for a long time.



Now with FP2007 - there is a setting for RAM-REG in EWF and there is FBWF.



Removable is still problematic with preparation since DOS is needed to prep
the disk.

Regards,

Sean Liming
www.sjjmicro.com / www.seanliming.com
XP Embedded Book Author - XP Embedded Advanced, XP Embedded Supplemental
Toolkit



"dalai lamah" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Un bel giorno Ralph A. Schmid, dk5ras digitò:
>
>>>We switched from Sandisk Ultra II to Lexar Platinum II's - 80x. The
>>>Lexars
>>>were substantially faster, and the price was about the same. We haven't
>>>had
>>>stability issues with either brand.
>>
>> Is there a tool available switching them into fixed disks? And do they
>> support DMA?
>
> Can someone explain to me what is this thing of removable/fixed disks?
> I've
> used a lot of different CF with XPE, not doing anything particular to
> switch them as fixed disk, and I've never had a problem.
>
> --
> emboliaschizoide.splinder.com