After some recent server changes we now have some issues in providing files for download. I’m working on it, but it may take some time until it’s fixed. Sorry for any inconvenience.
[UPDATE]The download problems here and on my Binflash site should be fixed now.[/UPDATE]
Last week my ND-4551A didn’t stop clicking when I inserted a disc. Since the latest Optiarc drives (AD-7190A and AD-7191A) are not based on a NEC/Optiarc design anymore, I decided to soon get myself a new AD-7173A drive before they’re out of stock. It arrived today and from the first scans that I made, burn quality seems to be about the same as that of my 4551 drive.
By the way – after fiddling around a bit and cleaning some parts of the 4551 (mainly lens and rails), this drive seems to work fine again too. But it shouldn’t hurt to have a spare drive. 😉