RE: Macrovision Decoy Torrents (Paramount)

From: Daniel Lee <>
Date: Fri, 30 Mar 2007 14:55:19 -0700

Yes, their decoying is very similar to ours. I didn't notice them doing
anything different from us. If I didn't know that these were
specifically from Macrovision, I would have guessed that they were our



From: Ben Grodsky
Sent: Friday, March 30, 2007 2:47 PM
To: Daniel Lee
Cc: qateam; Ben Ebert; Jay Mairs
Subject: RE: Macrovision Decoy Torrents (Paramount)




Is Macrovision's Paramount decoying similar to our Universal Studios
posting? I'm wondering if the issue is just that we aren't decoying as
much as they are -- which I would expect for Paramount. Or is
Macrovision doing something better than we are that we should strive at
least to duplicate?


We still use free domains for trackers, they've just been much more
problematic for us than paid domains for trackers.





From: Daniel Lee
Sent: Fri 30-Mar-07 14:45
To: qa; torrents
Subject: Macrovision Decoy Torrents (Paramount)

We tested the three projects Macrovision is protecting for Paramount:
Black Snake Moan, Charlotte's Web, and Dreamgirls. From our initial
testing, it looks as though they are only using decoy torrents posted on
their own trackers for protection-there was no sign of interdiction.
Most of their decoys stopped downloading at 90%. Although some of their
torrents do get banned from sites like Mininova, and TorrentSpy, they
still have quite a few decoy torrents up on these sites.


An easy way to identify a tracker used by them is to go to the main
website of a suspected tracker (e.g.,
<> ) and see whether it points to DynDNS. All of
the trackers that have been sending out fake files seem to be redirected
through DynDNS.


According to the effectiveness report, Macrovision was 100% effective on
but we were able to download real files for both Dreamgirls and
Charlotte's Web. Still, they are pretty effective overall. If you
search for "Black Snake Moan" on IsoHunt and sort by seeds, they cover
15 of the 20 torrents on the first page.



Decoy Examples:



Suspected Macrovision Trackers:

Received on Fri Sep 14 2007 - 10:55:51 BST

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