As you would expect a mixed response already.
However some views (naturally) tainted by negative reports.(Budman62, sorry about your experience.FYI I had to return the first 4 1640s’ I purchased, before getting a string of excellent drives).
OK. Thte 1640 is an excellent allrounder. The f/w while still not perfect has matured well(& frequently). In my time with this drive BSLB/BSMB does better with + media(no slouch with - either). BSOB if you only use - media. DL still not the drives best media, plenty of drives will run rings around its performance here.
The 1650 has been improved on the h/w side. However its results are pretty much identical to the 1640. With running in + f/w upgrades the 1640 may well nudge in front. The exception should be with 16x media @ > 12x. This is where currently the h/w mods alone show some margin of improvement. It’s this ‘potential’ that makes the 1650 the better buy over the 1640. Unless of course you already have a 1640. Then the only marginal differences between the two, mean that little if anything would be gained ( this is unless all your media is 16x, an area where the 1650 already pips the 1640).
“Errr no the 1640 is not the same as the 1650, the 1640 has much [U]better [/U] [U]firmware [/U] at present, and is a [U]faster drive [/U] when in comes to burning me thinkies?”
Yes, in general f/w for the 1640 is a little more rounded & mature.
No, the 1650 when creating a full disc (not overburning) is around 3 sec quicker than the 1640. Not a massive figure, but one that does exist nonetheless.