USB 4 Gig thumb drive failures

If your running Windows 2000 there's a HotFix KB835732 you may require, I'd suggest downloading the Format software & the Operating Instructions (PDF), both located at the bottom of the page at the 2nd link.

http://www.sony.net/Products/Media/Microvault/usm-u2.html

http://www.sony.net/Products/Media/Microvault/download_usm-u2.html

John - could you be a little more specific as to what you mean by this:

After a couple of uses, the drive acts like a cdrom.

Thanks.

Thanks for the question as to "after a few uses" What happens is that I used the drives to copy data, move them to another machine, back and forth, reformatted the drive, suddenly when I put the drive into another or the same machine, I get the message "Please insert disk" like a cdrom without a cd in it. Thanks to all. p.s. the Sony software doesn't work, so what software is available to me to analyize or re flash the bios on these thumb drives?

wow, it would have not occured to me to take the thing carefully apart to check inside for the problem. nudge rdl
have you heard about a bug with windows where if you open a file for edit on a usb drive then try to eject the drive without saving the file it will cause problems.
i bet they talk about this on the microvault website or try searching under your os at support.microsoft.com for, say, 'usb hard drive'

Does it occur to you that this is a fake product. If you go to Sony Web site and search for the product model, you don't get any answer. My friends bought a few too, but they failed to function after a few times. So go check the Sony products from their web site before purchasing any of them from China.

I cannot be much help, but I am looking for the same answer. I have what appears to be an identical flash drive purchased for me on eBay. The seller has now closed his account, or course.

Mine worked to be recognized as a Sony drive the first time on a XP Pro laptop. but I was getting errors copying to it, so I formatted it with Windows. Ever since then, on every other computer, it gives the same message of "Insert disk into Drive X".
Think anyone has the way to flash the "firmware" or such back on it to make it work?

Not looking good:
Tried Sony's online Chat support, and it stumped them. They gave me 800 tech support line, turns out this model is only sold in India, not the US, which can be one reason it looks nothing like the other SOny drives on the web site.
He gave me a phone number for India tech support, but not sure I can justify calling that far to get blown off or told I am SOL. If someone wants to try, it is 9-111-6959600, although I do not know how you could dial that number and get past the first three numbers...