(Some methods to detect a real CD-R manufacturer
without a help of program-identifiers)
There is one universal method to tell the TY discs
from others: as a rule, an inner rim of a disc from Taiyo Yuden
has a mat surface, a serial number is positioned horizontally and
is extruded on this surface. Discs from the most of other manufacturers
usually have a transparent rim, and a serial number is printed around
Inner rim of the majority of CD-R discs
Inner rim of the majority of CD-R from Taiyo Yuden
There is also a way to tell a TDK Reflex (or Reflex
Ultra) by TDK from a TDK Reflex by TY, without even opening a polyethelen
package. First of all, ask for one disc from the box. Then feel
the number with your fingers
and try to find out if it is embossed
If it is, then you can take the disc: most probably,
it is from Taiyo Yuden.
Another simple way to find out where a disc is
from is for relatively new (Multispeed 1x-12x and higher) discs
EMTEC/BASF. Under this trend you can find both a high quality disc
from Taiyo Yuden and a dubious CMC Magnetics, Ritek, 4M or even
Computer Support Italy s.r.l..
First of all, find a bar-code on the back side
of a disc. The latter two letters in the sequence will help you
find out where the disc comes from.
So, "TY" means CD-R Taiyo Yuden, "MO" - Multi Media
Masters & Machinery SA (4M), "CM" - CMC Magnetics etc.
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