I've had the same problem in Breezy with a Pioneer DVR-111D using Verbatim 16x DVD+Rs. I've had some problems with Dapper too, but haven't testing fully. Dapper seems to use almost the same version of dvd+rw-tools.
The issue is fixed in newer versions of the package. From http://fy.chalmers.se/~appro/linux/DVD+RW/hcn.html - Newer Pioneer units fail to complete recording with "Device or resource busy"... The issue was addressed in 6.0 release. I downloaded and re-compiled version 6.1 from Debian testing, and it's working fine for me. Ben -- Pioneer DVD bug + fix https://launchpad.net/bugs/38842 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs