I wouldn't recommend BenQ discs unless you get them really cheap. I bought 100 of the +R ones (media code DAXONAZ1) from FutureShop a while back and I've burned them on both a BenQ 822 drive and a BenQ 1620 drive and have not been particularly impressed. The 822 drive burns them at 8X and the 1620 drive burns them at only 4X, and while the burns are not all that bad, they're not the greatest either - just middle of the road.
Most BenQ drives strongly prefer +R media, so I would presume the 1610 drive does as well.
Cheaper media that I like to burn on my 1620 includes 8X Smartbuy Prodisc R03 media ($23.99 Cdn / 50) and 8X Ridata R03 media ($25.99 Cdn / 50). I get great results with either of these discs.