[I]I'm not quite sure what you mean...
The 9S1B (the new one) was the OFFICIAL one (i.e. not modified at all)
The older 9S19 one (which I used before and which I reflashed shortly)
was "speed hacked". (codeguys.rpc1.org/firmwares.html).
But with the non-hacked, official, older "9S19" the sound also isn't there.
As it is not with the speedhacked one.
To make it clear again: This distinctive (somewhat disturbing "floppy seek") sound is only present when the new, official 9S1B firmware from the LiteON site is used.
I would be grateful if u could try ur rebadged drives with the new fw.
I will try the new firmware on my sony reader as soon as i can...
Do you have hask to the CODEGUYS to patch the firmware (9s1B) for speed ?
If yes, what was their answer ?