.SD2 File Extension
File TypeSound Designer II File
This file is saved in a binary format, which requires a specific program to read its contents.
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.
NOTE: Digidesign is now Avid Technology.