New Viral Campaign from Sony

Sony is about to start a new online viral campaign in UK to promote their Net MD and Altrac CD Walkman. I think, it is not officially launched yet, but you can see the website here: www.canttellthedifference.com (found at Up2Speed).

I don't know... The flash clips are somewhat funny, but what is the message behind them ? You can play any music on the new Sony Net MD ?? Well, thanks for the hint, but I could do this already on my first Sony Walkman, which I bought nearly 20 years ago...

And I can't find the answer to a pretty obvious question: what do I need a Net MD for in the age of the iPod ?