Professor SanDisk,
a quick search on the internet will bring up hundreds of results of people with the same read only problem. I am an IT expert and my 16GB Cruzer Blade made it to 24 hours of use before it to went into a ‘read-only’ lock.
I stopped buying SanDisk products after the catastrophic failure of my 4GB Extreme III SD card.
The current 16 GB Cruzer blade was a gift.
Either post a solution to this problem or post a procedure where we can exchange the unit or receive a refund.
I rather suspect the SanDisk chinese production is biased towards quantity rather than quality.
Regards