He/she talks about open sourcing and porting ratDVD as can be seen below (I've slightly edited the quote): If he/she is wanting to open source rDVD then I'd suggest using the GPL and posting it as a project on SourceForge (http://sourceforge.net/); unfortunately Kylix is no longer supported -- by that I mean that Borland stopped Kylix a few years ago...yes I know it's basically the Linux version of Delphi which in itself is actually just Pascal) -- so for Linux it may or may not need a rewrite like he/she talks about doing for a Mac version.