Hi,
i see i forgot to paste in the line number
libburn/sg-linux.c , line 649:
       char fname[10];
should be at least
       char fname[11];
I'm rolling a new development tarball 0.4.9
tonight where all known consequences of the
missing-/dev/sr Problem are taken into respect.
Maybe it is best for now if you simply perform
as superuser:
   ln -s scd0 /dev/sr0
and do not use drive_scsi_dev_family=scd.
Have a nice day :)
Thomas