This week, I bought an H55N, as well as 100 MCC 03RG20 (Verbatim 16x) media. Before doing anything, I flashed the drive to firmware 1.03.
I'm wondering what kind of interface burst transfer rate you can get with the IDE version of the drive. I found that on the JMicron IDE controller on my Gigabyte 965P-DS3, I can only get about 25MB/sec or so. Writing at 20x requires 27MB/sec. When burning the said media at 20x, I noticed that, starting at about 90%, the drives buffer seemed to be jumping up and down, likely indicating the interface was being saturated. However, the entire burn to this DVD-R (4488MB) only took 4:47.
As far as readability is concerned, reading back the said disc on my BenQ 1640 did give the same unrecoverable read error displayed on the review, however reading back the same disc on the H55N itself resulted in a slight dip down to 12x at the very end of the disc, with the drive being able to successfully finish the test.