Re: OT: USB 1.1 limitations

["Geoff H" <yahoo@xxxxxxxxxxxxxxx>]

Not sure if I can really help with the problem but just checking
some details.

You are not trying to store lots of files to the root directory are you?

There is a limitation on the number of files that can be written to the
root directory. Creating folders or sub-directories overcomes this.

Apart from this, I can't think of any reason why you are having this
problem.

Geoff


On 8 Aug 2006 at 7:56, Brad Salmon wrote:

> Hi all,
>
> Apologies for the OT and long post but at a dead end and I'm sure
> one of you knowledgable chaps could point me in the right direction.
>
> The basic problem is that I've bought myself a 1GB Sandisk SD card
> and SD card reader, but can only write about 580 MB worth of data to
> it. I initially switched cards and readers around but to no avail,
> hence got a friend to try it on their computer - and it worked
> effortlessly.
>
> The only initial difference between these machines is that they're
> running XP Home, whereas my machines are running XP Pro. I've also
> tried all the kit out on a family members XP Pro machine and it too
> has the same problem - furthermore their 1GB USB Pendrive was
> topping out at about 800MB.
>
> So I'm wondering if this could be a USB 1.1 vs 2.0 problem? Does
> USB1.1 have a limitation of the amount of data that it can
> read/write? I've tried googling but could only find transfer rates
> and no specific info.
>
> One final twist. The friend (whose machine it worked on) left enough
> files on the card to almost fill it up. Once in tis state the same
> card and reader was quite happy to add/remove etc from the card but
> as soon as I wiped it clean I had the same issues again.
>
> Thanks in advance for any advice. I've started looking into the
> USBSTOR.SYS driver as it would appear that all USB mass storage
> devices use this driver, but there seems to be very few alternatives.
>
> Roll on Tuesday,
>
> Brad
>
>
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>