I love audiobooks, but my pixi does not play mp3 files to the very end. More than that, larger the file - larger time period at the end it skips. For example, on 5 min mp3 file it skips about 1 sec, on 40 min it skips about 10 sec. The only solution that I found - convert mp3 to m4a format. m4a does not skip the ending part of the file. Does anyone else have similar problem?