I'm having similar problems. The issue seemed to come in a couple of month ago under 9.10.
I've been using Karmic ever since I've bought my Acer M5800 and everything worked fine - also the burning. But suddenly a few month ago, when I tried to burn some files on a dvd, burning always failed. Sometimes it burned 'forever'. So I've decided to wait for Lucid. Set it up yesterday, inserted empty DVD, opend 'Nautilus CD/DVD Creator', dragged in some movie files, hit 'burn'. Burning process started and things looked good. then suddenly the process bar was gone and there was just this nautilus window listing the DVD content and it seemed all files were there, even there was no 'success-message'. the files were not readable though. Then tried burning some files with brasero on CD. this seemd to work, but got mentioned message at the end 'Please eject the disc from...' . Pressed the cancel button and ejected manually. CD and files are readable.... Funny thing: I'm also using Lucid on my HP 8510P notebook and there, burning is no issue at all. -- Brasero burning ISO dvd-rw fail please eject manually https://bugs.launchpad.net/bugs/578910 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs