Summary says it all. Ivman (tested latest version, 0.6.8) actually mounts blank CD/DVD media, so that the device appears blocked to burn applications. To burn a disc, I have to disable ivman and unmount the media manually before burning. It also mounted an unformatted USB harddrive, which I had to unmount before I could format it. I'd expect ivman to NOT mount blank or unformatted media, as there isn't anything to read there anyway, and having to disable it whenever I want to burn something shouldn't be necessary.
I don't use ivman but just out of curiosity, how can it be mounted when it's not formatted (therefore does not have a filesystem)?
I don't know. The USB hd was completely blank (it didn't even have a partition table), and I assume blank CDs/DVDs doesn't have anything on them either. In either case, the mounted directory was empty, but it showed up as mounted in the list printed by 'mount', and the device was reported as busy by the format and burn programs (respectively).
what does mount show? What is the filesystem?
As well as the info genstef asked for, can you please post all of the information from 'lshal' for both the USB drive and any blank CD?
I upgraded hal and dbus to the latest (stable) versions, and the problem disappeared (I had actually already done this, but the packages got downgraded after a revdep-rebuild for some reason). Sorry for the noise.
fixed in latest stable