.SD2

.SD2 file extension

This is the basic program to work with .SD2 extension

QuickTime

QuickTime Sound Designer 2

Includes support for the key media formats, such as H.264 and AAC. The QuickTime web browser plug-in is no longer installed by default and is removed if you have a previous version of QuickTime on your PC. If you still need this legacy plug-in, you can add it back using the custom setup option in the installer... (more)

The program works with the following extensions: bmp, mp3, gif, mp4, jpg, swf, png, psd, mkv, avi, jpeg, mov, dv, au, qt, m4p, sd2, bwf, mac, mp2, m4v, dib, sdp, caf, jp2, m75, sdv, mpa, jpe, smf, cel, mpe, smi, dif, rgb, mpg, mpm, sgi, rmi, mpv, pct, sml, aif, flc, snd, mqv, pic, swa, fli, m2a, pls, ulw, gsm, mmv, pnt, wav, qcp, vfw, kar, qti, 3g2, qht, m15, 3gp, tif, m4e, m1v, m1a, tga, m2v, m1s, qtl, m3u, qup, aac, rts, amc, mps, mid, m4a, m4b, qif, ac3, amr, xpl, cdda, pntg, qtif, mpeg, smil, mpg4, aifc, pict, aiff, qhtm, moov, 3gp2, tiff, 3gpp, adts, mpga, rtsp, midi, targa, movie and m3url

.SD2 extension is also supported by the following programs:

ACDSee

ACDSee ACDSee 8.0 SD2 Video

Organize, view, edit, print, catalog and find all of your graphic files.
Winamp

Winamp Winamp media file

Manage and play audio and video files in your computer, and listen to podcasts.
SAS Enterprise Guide

SAS Enterprise Guide SAS Data Set

Sothink FLV Player

Sothink FLV Player Winamp media file

This program allows you to watch your FLV files without converting them.
jetAudio

jetAudio Winamp media file

JetAudio Basic is a video and music player but it also can burn CD's,record,etc.
Adobe Acrobat Professional

Adobe Acrobat Professional Sound Designer 2

Create, edit, convert, sign, annotate, and compress PDF documents.
State Street - QuickTime

State Street - QuickTime Sound Designer 2

Anole Media Player

Anole Media Player Winamp media file

Adobe Reader

Adobe Reader Sound Designer 2

Adds annotations to documents using a complete set of commenting features.