Colour CDs Vs Plane

[oshta]

Is the any diffrence in performace between colour bottom disks, and or silver bottoms ones

- ie, are blue bottomed CD less reliably at burning than silver ones?

- to CD players ply silver CDs more reliably?


jst wondering, daniel

[oshta]

and also, while im at it

- how true is the mith that most set-top DVD players wont play DVD+R

[Agent]

Coloured ones are usualy dye based. Ie. they can be written to by a CD burner.
Almost all "silver" bottom ones, are whats refered to as "pressed" CD's. They are made in a factory and use a glass based master disk iirc (its been a while)

They both use different "book" formats. These are the spec's for how the CD should be written (and read by the player). There is a bit of a controversy at the moment, as many companys are not making "true" CD's (ones that follow the red book format), and using different "copy protecting" techniques (non of which work anyway).

Generaly speaking, CD's dont have half the compatibility problems of DVD's (written CD's and pressed CD's are very simlar in the way the data is layed out on the disk, with DVD's there is more differences and two fighting formats, + and -)

Some links :
http://library.thinkquest.org/26171/p2.html (ugly design, but loads of usfull info)
http://stuffo.howstuffworks.com/cd.htm
http://stuffo.howstuffworks.com/cd-burner1.htm

As for the myth : Most DVD players will have less problems with +r over -r media.
When you bring bit-setting into it, +r will play on almost any player (ive not seen one it wont yet).
Bitsetting allows the disk to "fake" its type.
For example, the player see's a +R disk and thinks "i dont know what this is, i wont try to play it". The bitsetting will mean the player see's the disk marked as a real DVD ROM, so instead the player just trys to read it as a normal disk. As the +r format isnt too far away from pressed DVD's, the chances are it will play them.

[alexander]

Just me or is it plain?

[Swafe]

agent mate, theres a new type of dye, ive had a few silver bottomed cds and they look real

infact, you can hardly see the 'burn marks' unless u squint, at a tight angle - i think there designed to look a lot more like pressed cds but there not, as for compatibility im not sure, ive never had a problem with blue green or silvers

well a few of my old dark blue ones have gone funny but theyve been in a moist draw for 7 years, so im not suprised, the green ones always worked well for me, strong burn marks and never an error even after a few years, but im sure the silver ones are fine

[Agent]

Ive seen them Swafe, hence why i said "Almost all", and not all
They aint bad, dont seem to be that many around at the moment (and the ones ive seen have been a bit expensive ), and im yet to see them in a printable form (somone PLEASE prove me wrong )
However, i can tell the difference between pressed and these without too much problem. They are better than the normal dyes if you want them to look like an orignal, but dont take more than a couple of seconds to realise they aint.