1st, the serial number version of PPro CS6 is on the 2nd page at http://www.adobe.com/products/catalog/cs6._sl_id-contentfilter_sl_cata log_sl_software_sl_creativesuite6.html?promoid=KFPMZ
2nd, you are SUPPOSED to be able to install CS6 from the Cloud, per http://blogs.adobe.com/davtechtable/
3rd, an Encore alternative http://www.deskshare.com/dvd-authoring-burning-software.aspx