Wave Killer allows you to search through a directory, listen to waves and optionally delete them, if you want.
MSC Software
MP3TOWAV.ORG
Amigo Software LTD
MP3Developments
4Musics Inc.
CFB Software
Excely.com
Kevin Strandiford
cwilliware.com
J.M.McGuiness
AddWit Ltd
File Recovery Software
Microsoft
Telos Consulting & Engineering GmbH
Software Illusions
Brian S. Kissinger