A record company is releasing next month what it calls copy-protected CDs which apparently cannot be ripped by CD readers. Major labels are waiting to see how it goes. http://news.cnet.com/news/0-1005-200-4099854.html --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
On Mon, Dec 18, 2000 at 02:18:11PM +1300, Ross Levis wrote:> A record company is releasing next month what it calls copy-protected CDs > which apparently cannot be ripped by CD readers. Major labels are waiting > to see how it goes. > http://news.cnet.com/news/0-1005-200-4099854.htmlThey are also unreadable by a large population of the existing standard CD players out there. Once someone hacks the firmware to rip them, the protection will be nothing and a large population will still be unable to listen to the CD legally. (witness dreamcast's cd format) Stupid stupid stupid. --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
Ross Levis wrote:> > A record company is releasing next month what it calls copy-protected CDs > which apparently cannot be ripped by CD readers. Major labels are waiting > to see how it goes. > http://news.cnet.com/news/0-1005-200-4099854.htmlOh, that's nice. This means we won't be able to play these cd's on some cd-players (the ones who actually rip the cd's at high speed, to have better error correction and/or pitch control). And we _can_ always rip it, just use raw mode block reading on the cdrom player i.s.o. cdda mode. Oh, and there's only three things they can do (as far as I can think of): 1) Do something weird to the cd headers (TOC etc.) => this will effect normal cd players 2) Put errors on the cd on purpose => this will make the cd much earlier to get unuseful because of scratches/dirt etc. 3) Use some different kind of plastic for the cd, a kind which will not be easy to the cdrom laser, but still is ok to a cd laser (cdrom lasers are a different color). Dagdag, Segher --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
On Mon, 18 Dec 2000, Ross Levis wrote:> A record company is releasing next month what it calls copy-protected CDs > which apparently cannot be ripped by CD readers.And cant be played by CD players either ;-) -Dan --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
Dan Hollis wrote:> > A record company is releasing next month what it calls copy-protectedCDs> > which apparently cannot be ripped by CD readers. > > And cant be played by CD players either ;-)They say there may be problems with some CD players manufactured prior to 1995. Ross. --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
This is moronic. Among other things, everyone who went out and bought USB speakers for their computer will be unable to play these-- USB speaker software as delivered on Windows, for instance, requires digital audio extraction because the speakers are basically D/A converters with a USB interface. -Chris Wing wingc@engin.umich.edu> A record company is releasing next month what it calls copy-protected CDs > which apparently cannot be ripped by CD readers. Major labels are waiting > to see how it goes. > http://news.cnet.com/news/0-1005-200-4099854.html--- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
On Monday 18 December 2000 02:18, you wrote:> A record company is releasing next month what it calls copy-protected CDs > which apparently cannot be ripped by CD readers. Major labels are waiting > to see how it goes. > http://news.cnet.com/news/0-1005-200-4099854.htmlhmm, earlier this year someone released two of those CDs in germany. after a huge outcry by just about everyone (consumers, consumer protectyion, manufacturers, just about every magazine, etc.) there werent any more that came out afaik Arne --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
Arne Hueggenberg wrote:> hmm, earlier this year someone released two of those CDs in germany. > after a huge outcry by just about everyone (consumers, > consumer protectyion, > manufacturers, just about every magazine, etc.) there werent > any more that > came out afaikThey apparently studied the German CD problems and this scheme is different. Ross. --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
Aleksandar Dovnikovic (aldov@EUnet.yu) wrote : ( sorry if you receive this mail twice )> "Frank Klemm" <pfk@fuchs.offl.uni-jena.de> wrote: > > > Some DVD drives are using green Layer light to also read out CD-ROMs and CD > > DA. This reduces contrast for pressed CDs (no lambda/2 interference) and > > especially for CD-Rs (dye absorption maximum), because they are optimized > > for 780 nm. > > Maybe you can answer one question that bugged me for some time and > everywhere I asked I only got vague responses: why some audio CD > players sound worse when using audio CD-R instead of original > (pressed) audio CD? WAVs from both CDs are exact match, so why > do they sound different?>From the page http://www.fadden.com/cdrfaq/faq04.html#[4-18] :> The manual for the CDD2000 reportedly states that the drive > uses 4x oversampling when playing back pressed CDs, but switches > to 1x for CD-R. This affects the quality of the D/A conversion, > and can make an audible differenceThere is more on that page , but not any definitive answer. -- David Balazic -------------- "Be excellent to each other." - Bill & Ted - - - - - - - - - - - - - - - - - - - - - - --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.