This is how I finally did it:
Code:
# examples for using a CD burner remotely (using just ssh)

# on the machine with the CD burner ("server", in this example 10.0.0.1), 
# sshd must be running and you must be able to
# log in to the server using ssh 

# 4x speed works just fine over a 10 Mbit network

# erase CDRW 
ssh [email protected] "cdrecord -blank=fast  dev=0,0,0"

# to burn just simply one single file, e. g. a movie
# without joliet or other fancy stuff
mkisofs /mnt/hda2/movie.avi | ssh [email protected] "cdrecord -speed=4  dev=0,0,0 -"

# to burn an ISO 
ssh [email protected] "cdrecord -speed=4  dev=0,0,0 -" < /mnt/hda1/xxx.iso