[Free-sklyarov-uk] Cactus busted!

rodti rodti at btclick.com
Mon, 31 Dec 2001 01:59:51 -0000
Previous message: [Free-sklyarov-uk] Re: Article on Cactus Shield
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It seems that the Cactus protection can be circumvented with a PC DVD
drive
 
I wonder if they saw THAT one coming?
 
- ---begin quote ---
 
 Our good buddy Patrick Norton (of TechTV's "The Screen Savers" fame)
has discovered that it's possible to rip mp3's of Universal's music
CD's, protected by the Cactus Data Shield system, using a DVD drive!
(Just spotted the story in my mid morning browse of SlashDot). 

With a purchased copy of the "More Music" CD, I discovered that it is
possible to copy the disc and burn MP3s from it using software freely
available for download online. 

With the copy protection working, a Windows PC shows the files and
automatically runs the CactusPJ audio player that comes with the CD.
(The CactusPJ player features difficult-to-see buttons and needs a
second window to show track info. It also shows up as possible
spyware on Ad-aware 5.6.) In theory, it's the only way to play audio
from a CDS-protected disc on a Windows machine. Without significant
effort, you can't play this disc with any other player, nor can you
rip it to MP3 audio -- in theory. 

However, a number of computer systems with DVD drives don't "see" the
copy-protected version of the disc. The systems that didn't see the
copy-protected files -- files we understand are installed by Midbar
Tech's Cactus Data Shield -- just showed a normal audio CD. 

On the computers where the copy protection didn't work, you can see
all 14 CDA tracks on "More Fast and Furious." While Track 1 wouldn't
play (using WinAMP, WMP, MusicMatch, and so on), the rest of the
tracks play normally. More importantly, all the tracks were rippable
to MP3 format. 

It turns out that the DVD drives in the systems we tested SEE
straight through Midbar Tech's copy protection. The drives don't see
the files CDS installs on the audio CD, nor are they confused by the
table of contents tweaking done by the CDS. 

We tested the DVD drive, an NEC DV-5700A, on a number of different
Windows 98 and XP systems. None of the machines had any trouble
seeing or ripping all the tracks, or playing tracks 2 through 14. NEC
doesn't normally sell retail, but it supplies DVD drives to Dell. In
fact, all of the Dell systems we tested saw through the copy
protection. 

This is copy protection? Here's a better question: Are all Dell
owners with DVD drives who buy CDS copy-protected discs in violation
of the Digital Millennium Copyright Act? Perhaps, if they purchase
the NEC DVD drive just for the purpose of circumventing the copy
protection. 
 
rodti at btclick.com
 
PGP Key ID - 0x2A2D8C77
 

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<BR>
It seems that the Cactus protection can be circumvented with a PC =
DVD<BR>
drive<BR>
<BR>
I wonder if they saw THAT one coming?<BR>
<BR>
- ---begin quote ---<BR>
<BR>
 Our good buddy Patrick Norton (of TechTV's "The Screen Savers" =
fame)<BR>
has discovered that it's possible to rip mp3's of Universal's music<BR>
CD's, protected by the Cactus Data Shield system, using a DVD drive!<BR>
(Just spotted the story in my mid morning browse of SlashDot).<BR>
<BR>
With a purchased copy of the "More Music" CD, I discovered that it =
is<BR>
possible to copy the disc and burn MP3s from it using software =
freely<BR>
available for download online.<BR>
<BR>
With the copy protection working, a Windows PC shows the files and<BR>
automatically runs the CactusPJ audio player that comes with the CD.<BR>
(The CactusPJ player features difficult-to-see buttons and needs a<BR>
second window to show track info. It also shows up as possible<BR>
spyware on Ad-aware 5.6.) In theory, it's the only way to play audio<BR>
from a CDS-protected disc on a Windows machine. Without significant<BR>
effort, you can't play this disc with any other player, nor can you<BR>
rip it to MP3 audio -- in theory.<BR>
<BR>
However, a number of computer systems with DVD drives don't "see" =
the<BR>
copy-protected version of the disc. The systems that didn't see the<BR>
copy-protected files -- files we understand are installed by Midbar<BR>
Tech's Cactus Data Shield -- just showed a normal audio CD.<BR>
<BR>
On the computers where the copy protection didn't work, you can see<BR>
all 14 CDA tracks on "More Fast and Furious." While Track 1 wouldn't<BR>
play (using WinAMP, WMP, MusicMatch, and so on), the rest of the<BR>
tracks play normally. More importantly, all the tracks were rippable<BR>
to MP3 format.<BR>
<BR>
It turns out that the DVD drives in the systems we tested SEE<BR>
straight through Midbar Tech's copy protection. The drives don't see<BR>
the files CDS installs on the audio CD, nor are they confused by the<BR>
table of contents tweaking done by the CDS.<BR>
<BR>
We tested the DVD drive, an NEC DV-5700A, on a number of different<BR>
Windows 98 and XP systems. None of the machines had any trouble<BR>
seeing or ripping all the tracks, or playing tracks 2 through 14. =
NEC<BR>
doesn't normally sell retail, but it supplies DVD drives to Dell. In<BR>
fact, all of the Dell systems we tested saw through the copy<BR>
protection.<BR>
<BR>
This is copy protection? Here's a better question: Are all Dell<BR>
owners with DVD drives who buy CDS copy-protected discs in violation<BR>
of the Digital Millennium Copyright Act? Perhaps, if they purchase<BR>
the NEC DVD drive just for the purpose of circumventing the copy<BR>
protection.<BR>
<BR>
rodti at btclick.com<BR>
<BR>
PGP Key ID - 0x2A2D8C77<BR>
<BR>
<BR>
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Previous message: [Free-sklyarov-uk] Re: Article on Cactus Shield
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