Laser Calibration Issue with NEC 2510A

Hi all,

I used to own a Liteon 812S@832S.I was happy with it but i sold it to
a friend of mine and got a NEC2510A as NEC is one of the most popular
and recommended by many users.

But now i am having rather silly problems with NEC written medias.
I used 2 of good quality medias.Verbatim 4X DVD-R,Magic 8X DVD+R.

But still Toshiba SD-C2502 8X Dvdrom of mine hardly read these NEC
Written medias.

The same medias written via Liteon 812S@832S were easily read at 8X

I know NEC written medias are that of good quality but if these medias
cant be read by Toshiba 8X Dvdrom then it makes no sense to me. :stuck_out_tongue:

Now i think there is only way to overcome this problem.Thats is
by manually changing the write strategies modifying the firmware.

Or by some way,boosting the laser calibration power may help solve the

Any suggestions still appreciated. :stuck_out_tongue:

Well, my laptop is equipped with a Toshiba SD-C2502 :Z . I do believe it can be hardly defined as “8x DVD-ROM”. I own a NEC 2500A and a LiteOn851@832; the Toshiba NEVER reads ANY DVD I burn with ANY of the burners at a decent speed (its maximum is 2.5-3.5x). Same issue with pressed DVDs, even with hacked firmware. Moreover, it doesn’t read bitset DVD+RW, nor -RW (and it should, according, for example, to this page).
So, it seems that reading features of this drive are, at least, very poor/unreliable :frowning:

At last i have seen someone having the same problem as me :stuck_out_tongue:

Pal,Princo made DVD-R 4X Medias are read by Toshiba DVDrom but at very low
speed 1X to 2X from beginning to the end of the media.

Nec’s 2.15 official firmware worked only for this thing until now.

I think i will go back to my liteon DVDRW as Princo media’s are read at 8X by Toshiba.

Well the issue is just laser calibration power issue.if only there is a way to boost it
while writing medias via NEC,then this problem should not occur.