Direct cd and liteon 40x what upgrade to use

i have the liteon 40/12/48 and i like direct cd.looked on the roxio site for an upgrade.i have the dcd51up which does not recognise this drive.they say easycd5.1d.have upgraded my plat5 to the latest and easycd recognises the drive to burn cds ok.the only software upgrade i found for direct cd was 3.1 for download,any body know the correct software upgrade to get direct cd to recognise this drive.colin