Well take this much. Pioneer is pretty much the best out there. the A06 is nice for dual and the A07 is fast but 8x dvd-r is only sold my one manufacturer so it will be very expensive and next to nothing will be able to read it. Also -r is compatible with everything and all ps2 models where as +r is complatible with next to nothing. So taking that into consideratio and that dvd9 burners are around the corner depending on the price difference I would go with an A06 or an A05 point being you shouldn't burn over 2x for ps2 and my A05 is ROCK solid.
JAP 60GB PS3 (release date)
37000 L V7 Ocean Blue Matrix Infinity BB Navi (.32)
30001-R V4R Magic ICE 91f3+ PS2 Linux (2.4.1)
10000 V0 No Mod, PSP-1000 1.0 FW 100K release model
PS2 Linux Kit (BB Navigator Installed)
Scph-5501 Stealth, All Sega Systems
Cube with Save, Xbox 1.0 Modded