With Filestar you get 94 different skills for working productively with Sound Designer II File .(sd2) files.
About .Sd2
Name
Sound Designer II File
Extension
.sd2
Format
Binary
Category
Audio
Developer
Avid Technology
Description
Audio file created in the Sound Designer II format, which was originally developed by Digidesign for Macintosh audio recording programs; can be both mono or stereo and supports various bit depths and sample rates; used for exchanging audio data between applications.