The segmentation fault occurs almost immediately upon starting the burn process. I can add and remove files in the compilation window all day long with no problem. I hit the burn button and within 15 seconds or so the entire GUI disappears and the window where I started Nero shows the segmentation fault. I believe that I once saw
a pointer error of some sort, but have not been able to reproduce/document that error. Late yesterday I succeeded in burning just the /usr directory, a little bit over 3G, with no particular problem (except that it seemed very slow, but no experience to compare to). The disk is readable and Nero did not report any errors. I am going to try recording the balance in a second session, and see if two smaller sessions will work where one large one fails. May not be enough room with the multisession overhead, however.