shaid

Hi all, I just bought a MZ-RH10 and this is my first Mini disc for years (the last one was MZ-R70) I found 2 very strange and annoying things on my MiniDisc 1. When I delete PC track with the machine itsfelf, the all remain information do not change, but if I conncet it to the PC I can see that the time and space remain is changed (grew)!. on both occasions the tracks are not there any more. 2. is there a way to defrag MiniDisc after deleting tracks? Any sugestion? Thanks Shaid