Using wodim - get error opening /dev/sr0

[Michael Eager]

I'm trying to use wodim to write or blank a cdrom.  When I execute

$ sudo wodim dev=/dev/sr0 blank=all

I get the following error:

Error trying to open /dev/sr0 exclusively (Device or resource busy)... retrying

The same thing happens when I use K3B.  It says it cannot get exclusive
control over the device.

I can't find any process which is using /dev/sr0.  fuser returns nothing.

Any idea how to find what is locking /dev/sr0, or how to allow wodim to
write to the CD?

-- 
Michael Eager	 eager at eagercon.com
1960 Park Blvd., Palo Alto, CA 94306  650-325-8077