USB Port thinks it is a DVD/CD Drive

Hello out there
I always could use my USB-Sticks without problems, but one day suddenly my USB-Sticks are not shown on the Desktop anymore. Normaly they are shown as storage device on the desktop, but now the OSX tells me they are DVD/CD Disks he can't read. The Disk Utility Program sees them as USB-Sticks and all the Information about the Sticks is provided, but I can't open them. How can I get my Mac work again with USB-Sticks? Everything else works just fine. I did run the G5 PowerMac Hardware Test Software, but all Hardware is okay.
Thanks for the Help.
Power Mac single1.8 G5 / external 250GB drive / use spitscreened two 19 TFT   Mac OS X (10.4.4)  

Hi, Rolf.
They're called USB Flash Drives, often abbreviated UFDs.
Two ideas for you:
1. In what format is the volume or volumes on the UFDs in question? Mac OS Extended? MS-DOS? UDF? What does Disk Utility indicate?
2. Is there a VIDEO_TS folder on any of the UFDs in question? That may be causing the OS to think the UFD contains DVD video.
3. You wrote: "...now the OSX tells me they are DVD/CD Disks he can't read."Just how does it "tell" you this? Does a specific dialog box or error message display? If so, what is the exact text of the message?
4. When this problem occurs, check Console for clues, such as messages related to the mounting of the UFD.
Good luck!
Dr. Smoke
Author: Troubleshooting Mac® OS X
Note: The information provided in the link(s) above is freely available. However, because I own The X Lab™, a commercial Web site to which some of these links point, the Apple Discussions Terms of Use require I include the following disclosure statement with this post:
I may receive some form of compensation, financial or otherwise, from my recommendation or link.

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