I have 2 DVD burners on the same machine, the SONY DRU530A (primary) and the SONY 510A (slave). I have no problem burning DVD+R and DVD+RW using DRU510A. I have occasional problem formatting and rewriting data (use -Z option) on DVD+RW disks using the DRU530A. The problem only happens with the DVD+RW disks. I have no problem formatting a virgin DVD+RW disk the first time using DRU530A. The problem occurs when rewriting data (or ISO image) the second time or after with different size of data from the previous one. The message on the terminal shows that it keeps the 0% (data written) for a while and frozen at the step of de-icing (I have to turn off PC machine and reboot after). It also fails to reformat the disk when this problem occurs. However, I can reformat the same disk using the SONY DRU510A. I notice that the 2 machine firmware format the DVD+RW disks differently. The DRU530A formats very fast. I don't even see the % of disk formatted. When I check (run dv+rw-format without the -force option), the DRU530A only format a disk to 0.1% of capacity while the DRU510A formats to 11% of disk capacity. Any idea about this problem? Thanks Steven D.
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