I just got a 4167B to test. I wanted it to replace my Pioneer DVR108 because the 108 is quite a poor CD burner and I’ve heard that 4167B is supposedly quite a good CD burner.
Well I tested the 4167B and it is indeed a very good CD burner, it’s also quite a resonable DVD burner, but it’s a very ordinary DVD reader (at least the sample I bought was so).
I found this 4167B to be quite picky about reading my older burnt DVD’s, it had trouble (crc errors) on several DVD-R’s that both my DVR108 and my Sony/Liteon could read without any real problem.
With firmware DL12 it still read all the good quality burnt DVD’s ok, though it balked at most of my older DVD-R’s despite the other two burners not having any trouble. Where it really let me down though was when I upgraded the firmware to DL13, after that it started to get CRC’s and uncorrectable LLC’s on even some of my more recent and good condidtion DVD-R’s. I’m talking about DVD-R’s that PI/PIE scan with 95% quality (cdspeed) on the Liteon drive here.
Now I think this last case genuinely is more of a firmware bug than an actual limitation of the drives read ability. I say this because many of the DVD-R’s that gave that error on spin up, when testing with CDspeed and also when trying to make an image file from them in DVDshrink, were actually fully readable when I copied the VOB files directly. So something weird was going on there.
Anyway I reflashed the firmware back to DL12 and that particular problem went away. The drive was still a very mediocre reader in my opinion, but at least it wasn’t down right faulty like it was with DL13.