ok, i transferred some mp3 audio files from another computer onto my mac. when i import them into itunes and play them, the strangest thing happens. ex, if the length of the track is 1:18:34 as displayed on itunes, when i play it, it continues playing way past this time.. (like until 1:48:00) when i play from the beginning and let it run, the entire track plays, though exceeding the time shown. but when i skip to the beginning or middle of the track with the cursor, they do not play from consistent points. i hope this makes sense. any insight is much appreciated! thanks!!!