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Very interesting, though I'm really missing information on what kind of material they are using. While it's true that CD's can take a bit of the kind of environ
by roeme 13y ago
Very interesting, though I'm really missing information on what kind of material they are using. While it's true that CD's can take a bit of the kind of environmental abuse they describe (you scratching your game's CD doesn't fall into this category), we all know that in reality they weren't that durable – though I suppose that stemmed more from the fact that most CD's were produced cheaply, corners cut, a lot of abuse by the end user and whatnot. Did you know that there's even a fungus that really likes to eat CD's? ( http://en.wikipedia.org/wiki/Geotrichum_candidum http://en.wikipedia.org/wiki/Geotrichum_candidum – Not so much for damp archive cellars, then! ).
In conclusion; I think that just enforcing high manufacturing standards won't suffice, there must be some material definition as well. Looking forward for more information on this.
- nodata 13y agoWasn't the problem with CDs that they had a plastic layer, and a scratchable metal data layer with no protection on top?
- ars 13y agoYah, everyone assumed that the clear side was the fragile side and protected it, but actually the label side is much more fragile - and unlike the clear side, unfixable if it gets damaged. But what happened to the promised sapphire (alumina) coating on disks that makes them scratch proof?
- roeme 13y agoNot exactly; the specification called for a plastic layer on both sides of the metal data layer. In cheaply produced media however the top layer (top here = the one with the print on it) was made as thin as possible, or even omitted and just coated with a printing. Also, there were cases where the two layers were joined/glued together inadequately, not properly sealing the metal layer from the environment. All of this led to the oxidation of the metal layer; rendering it unusable.
- hga 13y agoStamped CDs have nothing but some thin protective layers on top of the metal. CD-Rs, at least good ones, have more protection on top and aren't as fragile.