I am able to reproduce this on Ubuntu 12.04 / brasero 3.4.1-0ubuntu1. I discovered an odd workaround though; if you open the copy dialog before inserting the disc, it will be automatically selected and you can copy it without problems. Why this would work differently than if the disc is inserted before opening the dialog, I don't know.
** Tags added: precise -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/878339 Title: Copy disk - disk to copy disappears when 'copy' button clicked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/brasero/+bug/878339/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs