My USB Flash Drive isn't recognised?

Today, when using my Macbook with Mac OS X Tiger (10.4.11), suddenly it did not recognize my Verbatim 4GB USB flash drive. What's strange is that when I plug it in, the light on the flash drive blinks as if the computer has connected to it, but it doesn't show up either on the desktop or in Finder. I have tried both USB ports on the side of my Macbook.
I have tried shutting down my computer and restarting, but nothing has happened. I also know that the flash drive works properly because I plugged it in to my PC and it was recognized. Another thing is, that my Macbook does recognize both my Memorex and Scandisk flash drives perfectly normal. Up until today, there have been no problems with this device. Can anyone help me on this topic? Thanks.

A few things to check:
- If you launch Disk Utility does the flash drive show up there as a volume? I once had my iPod do the exact same thing as your flash drive and when I opened Disk Utility it mounted the iPod volume within seconds.
- If you go into System Profiler does it show the drive being seen through the device tree under USB? The fact that it appears to be drawing bus power is definitely a good indicator.

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I am working between two Macs in my house: the upstairs one is MAC OSX 10.6.8, and the downstairs one (an eMac) is MAC OSX 10.5.8 -- if that matters.
I need to transfer files from the downstairs computer to the upstairs one.
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Niel:
Thanks for the reply!
The file on the eMac that I'm trying to transfer onto the flash drive is far less than 4GB.
So I went onto the eMac's Disk Utilities and reformatted the flash drive as Mac Extended: still no dice. Even with the contents of the flash drive erased, any attempt to copy files onto it resulted in the same "not enough disk space" message.
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What is the format of the volume on the flash drive? It's shown in the Finder Info window.

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Current Required (mA): 100"
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I know that, but I have USB in my older Macs, too, and besides, some of the most knowledgeable people are in these older forums!!
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Hi there,
Yikes, it sounds like you've been doing a lot of work on this project... Unfortunately, however, this isn't the Adobe Encore forum, but the Acrobat.com forum. While it seems like an exciting question, we're not able to address issues pertaining to other Adobe products and services. Here's a link to the Adobe Encore forum, where you're more likely to get help for this specific issue:
http://forums.adobe.com/community/encore
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http://forums.lenovo.com/t5/X-Series-ThinkPad-Laptops/Making-a-usb-stick-with-the-Lenovo-recovery-pa...
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IMac Dropping Firewire Disks & USB Flash Drive

I have a 3TB 800mb WD Firewire Disk daisy chained to a 1TB 800mb WD Firewire Disk on my iMac along with a 3.95GB USB Flash Drive.
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2.93 GHz Intel Core i7 16 GB 1333 MHz DDR3 Memory OS X 10.8.2

Hi Mike,
Tried all that, doesn't solve the issue.
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Usb HP v250w USB Flash Drive not working

My name is goutam kundu and my new bought usb HP v250w USB Flash Drive is not working and not formatting also.Please provide me some information or to send the service center.

I have the same problem too. (USB was working on windows XP but no longer does but windows 7 is fine. ) I logged a request on the HP website and got an email from [email protected]
they suggested I try (as below)
Please try to use our repair tools (Uifx-I or Uifx-II) that maybe could solve the problem.
The URL: http://www.pny.com.tw/index.php?cls=2&mode=download
If you still can’t working of the USB .
Then will to provide further solutions, thanks.
I eamiled {Personal Information Removed} back with
I"ve used your appicaitona dn it was successful on my windows 7 machine
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thomas.adkins wrote:
On previous versions of Network Magic, when adding a laptop to my wireless network, an option would appear for using a USB flash drive to transfer settings and/or password to the new machine.
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Hi thomas,
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My USB Flash Drive isn't recognised?

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