Hi again Just got the latest PC Magazine and I note that my table of CD/DVD acronyms (plagarized from PC World) is already out of date. :-) Now we have CD-MRW where the M refers to Mount Ranier. Although "there have been no specific announcements of DVD+MRW drives yet, Phillips recently proposed an addition ... The Sony DRU-500A apparently ships with Mount Ranier. (The Mount Ranier format put a Main defect table in the Lead-in area (area outside the data area) and a copy of the defect table in the lead-out area.It also sets aside some space in the data area as a "replacement area" where date which would have landed in a bad block is put. The price is somewhat slower reads/writes and slightly reduced capacity. The gain is reliability. Non-MRW drives will need custom software to read MRW data.) doug