Help Please!

I am having trouble with my Sony Ericsson W600i, my trak titles were improperly titled, and imported at 128kps. So I wanted to clear it out and put in new songs with correct titles all at 96kps. I deleted all the songs using Dics2Phone, and Disc2Phone no longer finds tracks on the phone. However the song titles still appear in the master playlist on the phone, but under info it says the songs have no size, and they will not play. When I delted them on the phone, the titles still come back. Also Disc2Phone says all the songs are gone but only reads 14.8mbs of space. For a brief second it read 220mbs but no more. Please what the hell is wrong with me/slash the phone. Once again the instruction manual sucks and gives no advice.

What about a master reset? I wrote down my phone book, and that is really all I have saved on the phone, but will this damage my phone? Should I do it or have the store do it?

On the phone if you go under phone staus it says it has 228mb of free space, so my question is, why won't disc2phone recognize this?

I just did a master reset, and the phone says it now has 232MB of free space, but disc2phone only says 20.4mb. WHen I first got the phone I had room for 65+ songs at 128KBs now it only has room for about 6. Any help at all?