Alot of people STILL rec. the A05..... Me included.....
Unless you just want to spend the extra money on a -R/+R burner... (Which you dont need anyway)
Also note, Pioneer also has a dual format burner...
The A06......
I would personally just get the A05 since I have NEVER seen a reason to use the +R/+RW format...
But thats just my opinion.