Need help backflashing my liteon 52246S

Hi guys, need your expertise and links to the firmware files for back-flashing the firmware in my burner to a 48x liteon.
Why would i wanna do this?

Well I’m sick of waiting for updates to the prassi px burning engine! I want to be able to use this burner with Sony CD Extreme so i can burn cds with really long filenames (upto 212 characters).


The guide and firmwares.