I have the PLEXTOR DVDR PX-755A SCSI Device and can not have access to choose slower writing speeds to make my dvd's unless I use a dvd rewritable disk. My dvd writing programs, DVD Architect and Nero, have slower speeds available, but they automatically block the slower speeds. Is this a problem of my blank dvd's? They are listed as accepting speeds from 1 to 16, so I assumed I would have a choice. Is there a way to slow down the PLEXTOR hardware ? My older dvd writer did not have this problem. The reason to write slow is that many dvd players can't read the faster speed engravings and you get a lot of glitches and freeze frames. I prefer to make my dvd master at the slowest speed possible to have the least errors. Thanks to anyone who has experience to share on this topic!