In message <62159.207.145.53.202.1113851916.squirrel at 207.145.53.202>
"Eric Smith" <eric at brouhaha.com> wrote:
Also, if another manufacturer started making discs
with ATIP data
claiming to be from Taiyo-Yuden or Mitsui, they would get sued for
trademark infringement, unfair competition, and fraud. I suppose
that might not stop manufacturers in mainland China, though.
The same thing doesn't appear to apply to DVD-R and DVD+R. There have been
reports of fake Taiyo Yuden DVD+/-R blanks floating around. Seems when
recordable DVD blanks are manufactured, the media ID block is blank. IIRC
it's written just after the discs are manufactured. Faking a T-Y Media ID
signature is no difficult task, unlike ATIP faking which would require a
stamper with a fake ATIP "pregroove wobble".
Put simply, if someone asks for a stamper with a Taiyo Yuden, Mitsubishi
Chemical or similar ATIP, the stamper manufacturer is going to want proof
that the company in question (T-Y, Mitz, ...) ordered that stamper.
Later.
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