osx mp3 player help

Hey UNIX Saviors,
I am not very familiar with unix commands so I need some detailed help please. I have a RCA Lyra MP3 player that is supposed to work as a drag and drop external drive when transferring my MP3's.

In OSX, the problem is that when I delete the MP3 from the mounted drive it deletes the files but doesn't free up any space on the drive so I can replace the MP3's. When I check the drive out on my Wintel machine the files are being moved to the Trash folder on the drive. I can delete the files from the Windows machine. In OSX, I am unable to view or delete from this Trash folder.

I believe that I could access this invisible Trashes folder using the Terminal but I don't know Unix well enough to do this. I would like to be able to delete these files right from my MAC so I don't have to plug the player into the Wintel box to delete and then go back to my Mac to upload the MP3's.

Can anyone give me the exact commands to follow to access this Trashes folder and delete the files?
Thanks in advance for you time and effort!
Dave

ls -al /Volumes/volumename

"volumename" should be whatever the volume shows up as on your desktop.

post the results of the ls command.