Guys, I have a matshita ujda740 DVD-ROM/CDRW drive on my laptop (D600) There's a plextor DVD+/-RW writer in the office and I wonder what sort/how to find out the compatiblity between disc written in the +R or -R format and whether the laptop dvd-rom drive can read it. What's the best "rule-of-thumb" to figure out compability? I wish they would get their act together and not make end-users when up with a betamax vs vhs war!! --