.B4S

.B4S file extension

This is the basic program to work with .B4S extension

Winamp

Winamp Winamp playlist file

Winamp is an advanced audio and video player, which was released in 1997. It comes with a comprehensive list of features, including the ability to manage media files in your computer. Winamp can automatically scan selected folders and sub-folders in your computer to add audio/video files to its media library... (more)

The program works with the following extensions: wma, avi, wmv, flv, mpp, mp3, mp4, au, it, xm, as, sf, xi, sd2, mac, amf, mss, ult, dts, mat, far, mus, voc, wal, mp+, cda, xmi, wmx, wsz, shn, m2v, itz, aip, wpl, xmz, mp1, wlz, m3u, mdz, med, wvx, avr, ogg, mid, miz, dsm, aac, htk, ogm, mtm, mjf, apl, paf, vqf, mod, nsa, raw, caf, pvf, m4e, mp2, nst, kar, rmj, wpz, nsv, vlb, rmx, cmf, okt, m4a, w64, sdc, gmd, mpg, ptm, m4b, aif, sds, hmi, rmi, s3m, m4v, xpl, ape, hmp, snd, s3z, b4s, asf, mpc, hmz, wav, stm, pls, fla, asx, wax, stz, flac, midi, m3u8, mpeg, aiff, mids, audiocd and 669

.B4S extension is also supported by the following programs:

VLC media player

VLC media player Media file

Plays most multimedia files as well as DVDs, Audio CDs, VCDs, etc.
Zoom Player FREE

Zoom Player FREE B4S Playlist

Zoom Player is a customizable Media Player for your computer.
Anole Media Player

Anole Media Player Winamp playlist file

jetAudio

jetAudio Winamp playlist file

JetAudio Basic is a video and music player but it also can burn CD's,record,etc.
MP3 Stream Editor

MP3 Stream Editor MP3SE Extended B4S Playlist

It is an application to cut, split, edit and join audio files together.