It might be Sony's attempt to make BD+ (Blu-ray's "1980s Home Computer Game copy-protection system") look good.
"Sure, some Blu-ray discs don't have BD+, which means there's a good chance they will not play in your legitimately bought player, probably resulting in you not only having to take the disc back, but also getting insulted by a jobsworth at the returns desk who will insist you're a dirty thieving pirate for returning a defective disk, but, hey, DVD had the same problems!*
* Though no DVD that, y'know, followed the DVD spec and therefore nothing that really was a DVD, had those problems. So we're lying. But we're Sony, we won the format war, nyah nyah."
Interesting question: Is there any way the DVD Forum could intervene and force a withdrawl of said discs on the grounds that, as they don't follow the spec, they cannot use the DVD trademark? There was talk of Philips doing the same thing a few years ago to CDs that didn't follow the Red Book format, and Philips themselves started threatening publishers who resorted to similar tricks.
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How is something about DVD's in the HD forum? Blu-Ray or HD-DVD yes but DVD?
It might be Sony's attempt to make BD+ (Blu-ray's "1980s Home Computer Game copy-protection system") look good.
"Sure, some Blu-ray discs don't have BD+, which means there's a good chance they will not play in your legitimately bought player, probably resulting in you not only having to take the disc back, but also getting insulted by a jobsworth at the returns desk who will insist you're a dirty thieving pirate for returning a defective disk, but, hey, DVD had the same problems!*
* Though no DVD that, y'know, followed the DVD spec and therefore nothing that really was a DVD, had those problems. So we're lying. But we're Sony, we won the format war, nyah nyah."
Interesting question: Is there any way the DVD Forum could intervene and force a withdrawl of said discs on the grounds that, as they don't follow the spec, they cannot use the DVD trademark? There was talk of Philips doing the same thing a few years ago to CDs that didn't follow the Red Book format, and Philips themselves started threatening publishers who resorted to similar tricks.
Oops, "don't have BD+" above was supposed to be "have BD+". Should be obvious from context, but just in case...