I've sucessfully flashed the firmware on my NEC ND-6450A to ND-6500A (current firmware v2.23 TDB).
It works great for CDR/RW, DVD+R/RW & DVD-R/RW media, but not for DL media.
I've tried firmware versions 2.22, 2.23, 2.24 and 2.no. All give the same result. I've also tried modifing the booktype to dvd-rom and dvd+r dl but it made no difference
I always get the same result in Nero: Illegal disc, and similar in other burning software.
The media I'm using is the following:
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Unique Disc Identifier : [DVD+R-DL:RITEK-D01-001]
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Disc & Book Type : [DVD+R DL] - [Not Available]
Manufacturer Name : [Ritek Corp.]
Manufacturer ID : [RITEK]
Media Type ID : [D01]
Product Revision : [001]
Blank Disc Capacity : [4,173,824 Sectors = 8.55 GB (7.96 GiB)]
Recording Speeds : []
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[ DVD Identifier -
http://DVD.Identifier.CDfreaks.com ]
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Anyone have any ideas what the problem may be?
*** EDIT: Problem solved I used
Liggy's NEC drive converter http://liggydee.cdfreaks.com/page/driveconv/ to change the drive ID from ND6450a to ND6500a, I had to reboot a few times for it to take but in the end it worked.