Fast MP3 Cutter Joiner cuts and trims a large MP3 file (up to 10 GB) into multiple smaller pieces, and joins multiple MP3 files into a single MP3 as well. Fast MP3 Cutter Joiner cuts MP3 file by file size, pieces count, time duration, and custom selections. The software provides a slider bar to visually position a cut points where you want to cut. You can also preview every custom piece, and cut with forward and backward overlap, fade-in and fade-out. The MP3 cutter keeps ID3 tags information and supports to custom title of target MP3 ID3 tag. For example: add sequence number to title, which makes you can identify output pieces in your MP3 player, iPod, and iTunes easily. To save your time, Fast MP3 Cutter Joiner also supports batch cut, you can cut a batch of MP3 files at a time. The software cuts MP3 files directly without re-encoding, so it is fast and exactly keeps sound quality of original MP3 files. The MP3 joiner accepts any MP3 files; even they're encoded different encoding parameters such as sample frequency, bit rate, and channels. And you can customize encoding parameters of target MP3. The software also supports batch join. The feature allows you to insert one or more MP3 files to beginning of a batch MP3 files, and append one or more MP3 files to end of a batch MP3 files. Fast MP3 Cutter Joiner is full compatible with Vista and Windows 7 (both 32 bit and 64 bit editions).