trankmast

After importing my music collection into sonicstage4.3 I click on one to hear it and it comes out all garbled(low quality). They play fine in Window media player. I have vista premium installed. Is this a DRM thingy? Is there a fix? I have a sony walkman AW-808. Transfering files to it isn't a problem. Apologies if this post isn't new. I was unable to find a similar post.