editing/remixing question

What softwear do you guys use when editing or remixing these songs

thanks in advance

I use Audacity by Soundforge.It is entirely free.Sorry,I do not have the link but it should turn up in a Google search.

I use Magix Music Maker, I know it's not the best program to use, but it's good enough (for me).

I haven't done anything for ages, but used a combination of Adobe Audition, and Sony Soundforge for mine, and DVD Audio Extractor to separate the 5.1 channels in the surround mixes.