CD Burner Auditing

Does anyone know if it is possible to audit what filenames users are burning to optical media? I suppose I can put a watch on the /dev/sr0 device for write events, but this does not give me any idea what was written to the disc. I suppose I could also set an execve watch all burner programs, eg. /usr/bin/k3b /usr/bin/brasero /usr/bin/cdrecord /usr/bin/cdrdao /usr/bin/dvdrecord, to know if someone opened the burning interface; but how could I tell what it was they were writing? Any suggestions are welcome. Kevin