These are my first two burns of TYG02 and first burn of YUDEN000 T02 by SOHW-1693S (KS0B). Burns of discs from the same spindle of each MID by DW1640 and PX-712A are posted for comparison.
After the first disc of TYG02, I thought the second was gonna get better. But :a :a :a !
I heard that Lite-On needed a few discs to “learn”. Is this normal in the process of “learning” of Lite-On? To go downhill first, that is.
Verbatim Advanced AZO+ DVD-R 8x TYG02 Made in Japan
0-23942-43475-7 GG000110 1013 VE534A012345GG
First disc: so-so quality by TYG02 standard
Second disc: worse! and bad!
Now compare with TYG02 from the same spindle by PX-712A, not that excellent PIE graph in PX-712A but got Quality Score of 99 in DW1640.
This is TYG02 by DW1640. Not that pretty PIE in PX-712A but with Quality Score of 98 in DW1640.
Fujifilm DVD+R 8x YUDEN000 T02 Made in Japan
4-902520-252111 TG001159 0409 EB523A012345PG
First disc: better than TYG02. Got Quality Score of 98 in DW1640 but that dense PIF in both DW1640 and PX-712A doesn’t look great.
Compare with PX-712A, a bit better. DW1640 and SOHW-1693S like it more.
Compare with DW1640, even better. DW1640 and SOHW-1693S and also PX-712A love it.
My conclusion from this:
SOHW-1693S can read discs burned by DW1640 and PX-712A as good as the burner of the discs. But not the other way round. Discs burned by SOHW-1693S read good by SOHW-1693S but worse by DW1640 and PX-712A.
PX-712A is a good indicator for bad burns when reading. It is the only one that shows the second TYG02 disc is bad. Of course there are no POFs but by my standards and many people’s standards I believe I can call it bad. True that DW1640 is a good reader but in this case it is too good not to show that the disc is bad. And I don’t count that spike. Oh, I think PIE over 280 in PX-712A is enough to indicate that the burn is bad?
So, should I just go back to DW1640 or waste a few more discs for Lite-On to “learn”? Why didn’t my PX-712A and DW1640 need to learn? They gave me Quality Score of 99 and 98 right away the first TYG02 discs they ever burned! Discs from the same spindle.