Waitstate,

i did exactly like you, but only read the original red alert 2 with my plextor 40x UW drive, it works fine with other drives on different system
i don't use my burner system to play and test games out
other systems consists of many other drives, from Pioneer DVD 6x SCSI to Asus, Acer, Sony, Panasonic, Toshiba, and other crappy drives thru my friends' systems.

They all work fine, i use clone cd to copy them, plextor 12x10x32 ide to write them back same bios updates as you, had fast skip on when read