i have had this problem so far with 3 ide burner: 2x Benq 1650 and Pioneer 112DL. I don't have any problems with burn speeds, but DVDInfoPro and Nero's transfer rate test reports that the read speed takes a dive after a certain point and never recovers. my benq's will get up to around 10x or so, then go down to 6x and stay around there. the pioneer gets to 8x and stays around 6 for the duration of the test. the result for all look like mountain ranges :Z i have tried the same test with two sata drives: LG H20L and Samsung S203N. I got the results i wanted: the gradual incline to max speed at the end of the disc. these are the 3 motherboards i have:
using a Q6600 or e8400, at least 3GB ram, and at least a 650watt psu, all of the motherboards exhibit the same behavior. I have tried raid drivers and ide drivers, ide mode and ahci mode, xp, vista, 64-bit, 32-bit, normal mode, safe mode, new moon, full moon. it's all the same.
does anyone know why this is happening, that my all my ide drives seem to have gone bad all at once? lol
single layer burn quality doesn't seem to be affected, but i can't seem to get a good dual-layer burn on verbatim 2.4x discs (MKM-001) anymore (@4x,@6x.) , not to mention other brands. there are HUGE PIF spikes around the layer break.
i will try burning with the sata drives and see what happens. i will also try some testing on an older rig. maybe it's these extra IDE chipsets (Marvell on the ASUS, jmicron on the Gigabytes)
any info or suggestions would be appreciated, thanks. dynamis.