Audaptor is described as 'batch converter for Sound Designer 2 files to more modern PCM audio file formats. AIFF, WAVE, CAF, and WAV64 formats are available to convert to, and the sample rates, bit depths and number of channels are maintained from the original' and is an app in the Audio & Music category. There are more than 10 alternatives to Audaptor for a variety of platforms, including Windows, Android, Mac, iPhone and Linux. The best alternative is VLC Media Player, which is both free and Open Source. Other great apps like Audaptor are foobar2000 (Free), AIMP (Free), MediaMonkey (Freemium) and jetAudio (Freemium).