hummies

Hi there all, just wondering if someone can help me. I've been using SS 1.5 for over a year now and have had no problems. But in the last few weeks when I try to import mp3 files to atrac they import over really fast and the file is like only 0.1 of a megabyte and is really small and not hardly there. I've tried re installing the software as well as downloading another sonicstage program. I've been through the help files again and again and have adjusted the bitrate accordingly 132 etc etc but still no luck, can anyong help me its really annoying could it be my computer causing it?? Hope to hear from someone real soon cheers,JW