As it stands now possibly not but I have just read in the May issue of PC Answers that, and I quote
"Philips backs DVD-RW. Having put its money firmly behind the DVD+RW market, Philips has had a change of heart. From now on its drives will now support both DVD+RW and DVD-RW. This won't just be with new drives either. Philips will release a firmware update for the DVDRW824K so that it supports DVD-RW as well." My be worth giving Philips a ring.