Sony CDP-X5000 - Manual (Page 14)

Playing CDs
14 GB
You can play the tracks in random order (Delete
Shuffle Play)
Just skip Step 3 in the above procedure.
You can delete a track while playing
Press CLEAR while the track is being played. The
player deletes the track and starts playing the next
track.
You can store the deleted tracks of each disc
See “Storing Specific Tracks of a Disc” on page 20.