So I have 3 drive capable of scanning DVD's...
A TSSTcorp SH-S203B, a Lite-On iHBS112, and a TSSTcorp SH-B123L
So, I've scanned the same DVD+R DL in all 3 drives at every possible scanning speed and get vastly different results between drives and even in the same drive a different speeds. Here's an example:
Memorex DVD+RL 2.4x [Ritek D01 (001)]
Burned several years ago with ImgBurn (or DVD Decrypter)
@2.4x in NEC ND-3540A
Lite-On iHBS112 Scans:
TSST SH-B123L Scans:
TSST SH-B203 Scans:
So, the million dollar question becomes, which one(s) is/are correct? I'm guessing that the 4x iHBS112, 8x and 12x SH-SB03, and 12x SH-B123L results are bad / rather erroneous, but I can't prove it. They just don't correlate to the majority of the scans.