Not all media files discovered by media apps I have folder on my sd card called podcasts. It contains  subfolders of podcasts. My problem is the media players I have tried only display some of the podcast files as being available to play. 

There doesn't seem to be any reason why the displayed files should be playable and the others not. I have tried clearing the data of the "media storage" app as well as running a "rescan sd card" app, to no avail. 

So, any ideas as to how I can get all of my podcasts to be playable in a media player? 

UPDATE: The problem seemed be caused by Winamp not playing wma format files, even though it's meant to support them. Have converted them to mp3 and they now appear in Winamp and can be played
The problem seemed be caused by Winamp not playing wma format files, even though it's meant to support them. Have converted them to mp3 and they now appear in Winamp and can be played.