You totally misunderstood my question. And your explanation is off- topic. Kind of truism that almost everybody know !
And it’s a pity that it sounded to you as easy as you might have thought.
But I repeat it once again.
You have a 48x drive ( note, not a 40x one )
It IS an obvious thing that it goes all the way CAV @48
and btw, it IS clear that a 40x drive writes P-CAV @40
It kinda goes without saying, you know.
So, here’s the question :
How do you tell that it’s P-CAV when burning @40 in a 48x drive ?
Do you get it ?
Let me go further then. The FWs for 40x like zs0J / zs0K are capable of giving the drive the P-CAV method , at least @40
Likewise the FWs for 48x drives like vs02 / vs06 give you a chance to write CAV @48.
So, if the FW for 48x has such a capacity of CAV,
Why then it’s not (?) capable of writing CAV @40 in a 48x drive ??? Or is it capable ?
Let me show you this Feurio remark :
WRITER RECORDS IN PARTIAL CAV-MODE!
You have selected to burn with 40 times. But the writer “[1, 0, 0] LITE-ON - LTR-48125W” burns just with"40 times max", i.e. the writer doesn’t burn the whole CD with 40x. As for CD-ROMs the writer first begins with a lesser speed (22x) an increases then the speed up to the maximum speed.
Because of this the CD will not be burned at maximum speed, but you’ll get an average speed (depending on the size of the CD). For the same reason also the rest-time-display of Feurio! will not work correctly.
The reason for this is, that the angular velocity would be too high to record at the inner range of the CD with 40x (a CD is written from inner to the outside), which would make mechanical problems. So the writer first begins with a constant angular velocity (CAV = Constant Angular Velocity) and the datarate increases with time; If the maximum speed (40x) is reached, the writer switches to the CLV-mode (CLV = Constant Linear Velocity), i.e. the datarate will remain constant, the angular velocity decreases with time.
Well, this IS the explanation and that’s what I had actually expected from you to tell me.
Now, from the above description this leads me to conclude this - all it depends exclusively on the FW
Of course, partly on the media.
So, I don’t know whether LiteOn are working at this issue or not, but it seems to me that it’s just a matter of time and with the new FW release the matter would probably be fixed and we all be able to have the Full-CAV method in our 40x-48x ( and higher ) drives .
Well, if the new Yamaha CRW-F1 gives us such an opportunity, why wouldn’t LiteOn do the same ?
" The Full-CAV recording method is identical to the way a conventional CD-Rom reads data, which rotates at a constant speed no matter where the data is located on the disc. Yamaha’s efficient use of Full-CAV technology allows writing to increase at a smooth and consistent rate until it achieves full speed. Yamaha’s exclusive OWSC (Optimum Write Speed Control) adjusts to the maximum recording speed of the blank CDR."
Well, hopefully you now do understand what I meant in my previous post ?