Hello proud owners of NEC
according to my experiences i have seen,
In order for a written DVDRW media to read flawlessy,setting the
correct writing strategies and firmware changes arent always enough.
In order for DVD±R media to be read flawlessy,
The media has to have good reflectivity of laser beam.
The media has to be written with the correct writing strategies.
The media itself has to be manufactured in good quality.
Low PI and PIF values are usually mandatory for good readability
of the media.
Any inacurate situation of the above conditions will probably lead to
low readability of the media.
Because that happened to me
Verbatim 4X DVD-R Media’s are one of those very good quality medias.
But despite written perfectly via NEC 2510A - these medias are
refused to be read by my Toshiba 8X DVDRom.
But when i change the Firmware to 2.15 Revision these medias are
becoming readable suddenly
That situation has got to the with the laser calibration strategy defined
in the firmware of the device.
Here i blame the Verbatim 4X DVD-R Media because it is clearly seen
that it’s surface thats going to be written has low reflectivity.(First Situation above)
so from my experience i recommend you to get not only high quality media but also that contains the high reflectivity.
How can you understand that a media has high reflectivity or not ? Look below part of the media thats going to be written,that part of the media will be seen brighter to you whereas low reflectivity medias will be seen as darker color. Regards