In article <485a4dc6$0$27371$ba624c82@nntp06.dk.telia.net>, Erik Richard S¿rensen <NOSPAM@NOSPAM.dk> wrote:
> > the blue discs are the data life plus and are very good. in fact, > > they're often called verbatim blues because of the dye colour. it's > > their own formula (called azo), and as far as i know, only they make > > discs with it. i've never used the other verbatim discs and have no > > idea what colour those are. > > Not quite so... Both TDK and Kodak also have made blue disks, and these > disks are some of the worst, you can put into most SCSI burners and the > earler ATAPI drives in _any_ computer - Mac or PC doesn't matter here.
i've never seen blue discs from either of those, but in any event, the verbatim blues are their own formulation, called azo. if another disc was in fact blue, it was a different formulation.
and kodak made some of the *best* cds because of a gold protective layer. however, they cost more and most people wanted the super cheap discs (and often free with rebates) rather than spend money for quality. as a result, kodak ceased making cds.
> > if you want to burn at 1x, look for music cds. they're designed to be > > used in set top burners (attached to a home stereo, not a computer) > > which record real time and they're optimized for 1x burns. > > unfortunately, they're more expensive due to the music industry 'tax.' > > Well... yes and no... Not all countries have VAT on blank music CDs... > And hereto also before those countries put on tax on that kind of media, > the blank music CDs were quite a lot more expensive than normal data > CDs. - The foil in the the music media is apprx. 3-4x as thick as the > foil in a data media.
nonsense. the difference between a music cd and a regular cd is that there's a flag in the atip track of the music cd for the audio recorder to check to see that the user paid more money for the disc since the music industry assumes that they'll be used to illicitly copy music.
for whatever reason, discs for burners on computers weren't taxed that way, despite a lot more illicit copying occurring there.
> And not to forget. The data media are mostly made of aluminium or > aluminium-nickel alloy, which gives quite a stable type of foil, where > the special music medias are made of an alloy of aluminium, silver and > cobolt, which increases the production cost quite a lot, but also makes > that kind of media by near just as good as the factory made music CDs.
factory cds are pressed, not burned, and substantially more stable because there's no dye to fade. and as mentioned above, some cds (e.g., kodak) have a gold protective layer and supposedly will last over 100 years, but what they fail to mention is will there be a device that can read them in 100 years.
