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First, you shoud use "cdbkup 0 -l Test /dev/sg0 /home"
(you've missed backup level). Next, the cdbkup don't handle,
what device you've specified - it just passes it "as is" to
cdrecord(1).

Thus, try out "cdbkup 0 -l Test 0,0,0 /home" - it shoud works.