 Among modern services, Ultimix is well known for producing several megamixes every year based on popular songs of the year ("flashback medleys") as well as some single artist megamixes.Culture Shock has the "Hit "AC" Megamixes" on their main series derived from their now defunct radio show, as well as a satellite series entitled "Use Alternative Routes" which contains Modern Rock megamixes.Similarly, the UK-based DMC and Music Factory Mastermix remix services frequently include megamixes on their issues.