If you don't want to void your warranty, I would go with the retail one. It gets firmware updates faster than the oem ones. The retail drives come with the B7** firmwares and the oem drives usually come with the G7** firmwares.
support.benq.com doesn't even post the G7** firmwares. So, you have to rely on the US site to get the G7** firmwares. The US is behind the support.benq.com site with posting updates. Right now you can get the B7T9 firmware, but the G7T9 isn't out yet. You can only get the G7P9 firmware.
I have found 2 sites that sell a 1620 pro bulk drive in the US, but I'm not sure where your buying your drive from though. If you don't live in the US, your country may have the 1620 Pro.
Last edited by hydrogen
on Sat Jan 22, 2005 6:01 am, edited 1 time in total.