Playing back DSD files requires a bit more effort than most other formats, such as WAV or MP3 files. Most computers these days aren’t capable of converting DSD into audio because their audio hardware is limited to PCM files, so you have to use something else.
Simply put, open source is when the source code for a piece of software is free and open to the public. This means that people who use the software are not required to pay a licensing fee because it is not owned by one person or company. DSD (.dsf) is an example of an open source digital audio format, FLAC (.flac) is another.
Music lover and audiophile, David Slattery, took time out of his busy day to do a comparison of DSD128 to DSD64. Many people wonder if it's possible to hear the difference between a FLAC, WAV or DSD file. David gives a wonderful assessment of what he hears.
The music tested was Meghan Andrews from Blue Coast Records Special Event 43. Blue Coast Records offers music recorded in DSD and without overdubs and effects making the comparisons easier than overly processed music.