[Bug-xorriso] update_r

[sean loony]

Hello,

the man page of xorriso has this example:
xorriso \
 -abort_on FATAL \
 -for_backup -disk_dev_ino on \
 -assert_volid 'PROJECTS_MAIL_*' FATAL \
 -dev /dev/sr0 \
 -volid PROJECTS_MAIL_"$(date '+%Y_%m_%d_%H%M%S')" \
 -not_leaf '*.o' -not_leaf '*.swp' \
 -update_r /home/thomas/projects /projects \
 -update_r /home/thomas/personal_mail /personal_mail \
 -commit -toc -check_md5 FAILURE -- -eject all

I changed it to this:
xorriso \
 -dev /dev/sr0 \
 -abort_on FATAL \
 -for_backup -disk_dev_ino on \
 -assert_volid 'DISC_1' FATAL \
 -volid DISC_1
 -update_r /test1/bla /bla \
 -report_about UPDATE \
 -commit -toc -check_md5 FAILURE -- -eject all


/test1/bla  contains only one file, size: 64MB

Now I do the first run of the script and worked fine.
Then I rerun the script, nothing in /test/bla changed
but the script discovers difference and burns another
session (only a few kbytes).

Why does it discover a difference?

Software: xorriso 1.3.2
Disc: CD-RW 700MB
Drive: tested on several


Greetings