Re: Question of the day: iTunes + Watermarking?

[Steve Tornio <steve () vitriol net>]

On Jul 11, 2006, at 9:14 AM, Dave Aitel wrote:


> 4. Instead, we have a time-based scheme, where every hour our signal
> changes. We shove this signal into every song downloaded that hour  
> in a
> way that survives mp3 [F1]
> 5. Given one song, we know within a population group of many millions
> who it came from. Given 50 songs, we can identify the individual  
> account
> and turn it off or prosecute (or remotely update their iTunes with a
> special trojan if we can buy enough congressman to make that legal).
>
> This would explain why two people who go out and get the song right  
> now
> have the exact same song. But two people who are wildly different in
> their download times don't.

I had a free song coming to me on iTunes, so I downloaded that song  
again today and burned the test CD.  The md5 for the track stayed the  
same.

For what it's worth, I agree that we should be skeptical of Jobs'  
good intentions, and I wouldn't be surprised to find some variation  
of the scheme you outlined to be in effect.

Steve
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