I'm using a PX-708A with DVD+R Verbatim disks.
But its very slow.
First of all, make sure you use at least growisofs 5.11. 5.11 addresses DVD+ performance problem with Pioneer unit, but later it became apparent that Plextor unit would exhibit same performance degradation. If you already use 5.11 or later, then I can only tell that I've had received report from another PX-708A user, who reported that recording goes with varying velocity and significantly slower than expected. Reportedly the problem just disappeared with kernel upgrade [from 2.4.18 to 2.4.22 in his case]. The [subtle scheduling] problem is most likely IDE chipset specific, as there are more reports that the unit performs as expected.
I checked and am running growisofs v5.13. So I downloaded and compiled kernel 2.4.23 (released over the weekend). And as you say the problem just dissapeared. As you say - probably an IDE chipset thing. So now I can report full x8 speed with the PX-708A and Verbatim disks (the disks say x4 but the drive runs them at x8).
How can I support growisofs and related things. Developers need hard- ware and beer last time I checked.
--John
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