Hello Im New to this but here it goes, I have an MZ-NF520D md player and i finally got it to connect to sonic stage which i have and is version 3.1 because i heard that the new ones have more bugs, well the problem is that only some tracks will transfer to the MD. Other tracks get converted and start transferring and stop at 95% and then there is a box that says, Track "here is the name of track" cannot be transferred, Any Ideas anyone? Should I upgrade my sonicstage? I also tried Simple burner which i got from this site and When it was transferring, I got a message saying that there has been a serious error restart computer and the simple burner 2. This is really annoying. Is there a certain setting I need to transfer at? Thanks!