I have recently read in a post a while back that switching your format in clone from dvd5 to 4430mb setting that that will work better for your discs and burning. However, after changing that setting and burning a few movies i noticed that i was making coasters instead of good backups like before. Anyone else having these problems? What is the main purpose for this setting anyways? Is it if the % of burning that matters as to why you would change this setting.