My NEC DVD+RW ND-5100A cannot read a DVD+R nor a CD-RW on a DELL Inspiron 9100 laptop. These both can be read on my desktop. The NEC does play DVD movies OK and reads other CD's OK and records CD's OK. I have applied the DELL flash patch R94927 but still no success. Any suggestions?? Thanks in advance.

I think problem will be in your laptop. But I am not sure about till I get complete details about your problem. So, Please post all the details about your laptop and desktop computer.

DELL Inspiron 9100 running XP Professional SP2
Pentium 4 CPU 3.00Ghz
512MB RAM
NEC DVD+RW 5100A flashed to 10FE
Driver: MicroSoft 7/1/2001 version 5.1.2600.2180

Legacy Video Capture Device Properties:
WDM Video for Windows Capture Driver (Win32)

Media Control Devices Properties:
mciavi32.dll
mcicda.dll
mciqtz32.dll
mciseq.dll
mciwave.dll

Video CODECS Properties:
DivX6.1 Codec
iccvid.dll
Indeo video 5.10
ir32_32.dll
ir41_32.ax
iyuv_32.dll
msh261
msh263
msrle32.dll
msvidc32.dll
msyuv.dll
TechSmith Screen Capture Codec
tsbyuv.dll

Please let me know if any other info is needed.

Thanks in advance.