OK I messed up my mother's sony walkman NW-E105 She asked me to take off all the current music and put on a binch of new stuff. I said ok [not knowing what I just got myself into] I downloaded and installed sonictage 4.0????????. I went into that and i got error 000066a3! It told me to get rid of evrything on teh walkman or reinitialize. So I went into the OMGAUDIO folder then went into 10F00 and 10F01 and delteing evrything!!! [i was thinking thats the music files] Now all the files show up on the walkman but when you try to play them i get a 'FILE ERROR' on screen. i basicly said to my self "oh sh1t " Now form what I have read reinitializing is basicly reformatting it and bring its back to its original state with out any of its formar songs on it. And thats exactly what I want to do! But will this fix the problem? and mroe importantly.... How do I reinitialize? Any info would be great. Thanks alot! Cian