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Date: Sat, 24 Dec 2005 00:11:29 +0200
From: Radoslav Mitov <rmitov@interbgc.com>
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Subject: Making a data DVD with 4.10 and dvd+rw-format
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Did you try with growisofs -dvd-compat -Z /dev/cd0*a* -J -R ?
I had the same problem but , i tried with this device (cd0_a)_ and it 
worked.