Installed NeroVision 8 latest and greatest. No other software (Burning) on computer (Pentium 4 2gb RAM 250 GB Harddrive)Sony 840U external USB DVD burner. Sometimes it’ll burn, sometimes it won’t….no error messages, even in logs. Screen begins to go through slide show of pictures (only 500mb of pictures)…if it burns correctly, it will as for a DVD, it then burns. if not, the program stops and returns to the main menu. I have uninstalled, reinstalled. Antivirus on computer is AVG, scanned for all Malware/Spyware. Oh, and Windows XP with all updates.