. . . I was always buying TDK 1-8x Branded DVD-R's which had a media code of TTH01. When I bought my last pack of 10 I noticed they were not giving me the expected results. Dvd was always jumping, or finding it hard to read. When I stuck them into my computer and used DVD Identifier it told me they were TTG02. After searching many forums I have found out TDK do make these two types.
. . . .
I tried to study in detail the problem with the TTH01 mediacode in this topic here: http://forum.gravure-news.com/viewtopic.php?t=17694
Then I put online a proposal of 5 "label candidates" to be "genuine TTH01"
For the moment I only burn as being "genuine TTH01" mediacode the candidate n°1:
this label TDK "ScratchProof
These discs look realy grey
and not like the "traditional TDK blue" or candidate n°2: DVD-R 8x TDK photo printable:
I believe that these 2 labels are genuine TTH01 because of the results get.
I also bought a 10 pieces spindle of candidate n°5:
It is also a label TDK DVD-R 8x certified, but these are "traditional TDK blue" looking and to my personal experience they show: - TTH01 mediacode when you buy them in spindles
- and TTG02 mediacode when you buy them in jewel cases
I got some bad results while burning these "blue TTH01" with a NEC 3500 latest firmware 2.1A.
Notice: this NEC 3500 (with the last firmwares) allows to burn the TTH01 code at 16x, but the TTG02 code only at 8x max.
If I burn these "blue TTH01" slower at 8x or 4x, I get better results. From all this I think that TDK had a problem while manufacturing with their DVD-R 8x. Probably some of the TTH02 dye has been encoded with a TTH01 media code and now these "blue TTH01 mediacode with TTG02 dye" are sold in spindles.
This opinion as to be confirmed by experts ...
Anyway how do you explain this "fantasc" media code reading that japanese people have posted here: http://babelfish.altavista.com/babelfish/trurl_pagecontent?url=http%3A%2F%2Fhomepage2.nifty.com%2Fyss%2Fpuchi%2Flu_tdk%2Flu_tdk.htm&lp=ja_en