What are some alternatives?
When comparing Mixxx and Mixmeister, you can also consider the following products
Cross DJ - Mix, scratch, sample, record: rock great parties with top-DJ features.
DJ Mixer Pro - DJ Mixer Professional is the best DJ mixing software for Mac and Windows, Support audio, karaoke and video mixing, automatic DJ mixing, one-click beat-matching, etc.
Deckadance - Deckadance is a DJ mixing application that works either as a standalone program OR as a VSTi inside...
VirtualDJ - Virtual DJ Software - MP3 and Video mix software for DJs
Traktor Pro - Flagship DJ software with four decks and a stunning range of creative features for maximum freedom in DJing.
Pacemaker Editor - [You can still download last version of Pacemaker for Windows and Mac from Softonic: