I just picked up a NEC 3500 and a couple of Philips DVD+R 2.4x
Updated to the newest version of Nero 220.127.116.11 as well as 2.18 firmware for my burner.
I burned a DVD ISO data disc, using a new multisession, without finalizing/closing disk.
Burning was complete.
I tried browsing the DVD, but it shows the disc as empty in explorer.
I viewed the DVD with Nero and the session was comfirmed as burnt.
I tried to continue the multisession with my DVD but got the error:
"Illegal Disc.... Could not perform end of Disc-at-Once"
So there were my two problems...
I'm on WinXP with SP2.
Thanks you advance to all.