UL-Tran Media dvd 1-4x dvd-r discs supposed to burn at 4x but not on
Sony DRU-510a and Lite-on LDW-411s
Drive Type = DVD DUAL
Disc Type = DVD-R (Single Layer)
Disc MID = 4F 4E 49 44 54 45 (ONIDTE)
Disc TID = 00 04 43 48 00 00 (..CH..)
Manufacturer Maybe = Unknown
Smart-Burn Speed Limit = 4.0X(Write)
test shows they should work but no go
Latest firmware on both units
hope this helps someone