Reading Problem with Lite-On 411S@811S

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#1

I have Lite-On 411S @811S which I have SpeedHacked according to insrtuction every one else has used, but some how Nero Info Tool indentify the drive as Lite-On 811S with speed of "Read = 7X and Write = 8x. Does any one know why the Reading Speed is so low?, normaly the drive either 411S or 811S has Reading rate as 12X.