Brand New Interface: This update features a gorgeous new interface, streamlined for fast and easy use, and offering both dark and a light themes.

Multiple Windows: You can now open multiple audio files simultaneously in Fission, for easy copying and pasting back and forth, or simply to multitask.

Cross-Format Conversions: Export from AIFF to AAC, from Apple Lossless to MP3, or any other combination you desire.

Batch Conversions Too: With the new Batch Converter, it's a snap to convert dozens of files with just a few clicks.

Chapterized AAC Files: Podcasters rejoice! Fission lets you make Enhanced Podcasts with AAC in just seconds.

SoundCloud Support: Upload audio directly to your SoundCloud account.

New Formats: Fission now offers full support for opening, editing, and saving the FLAC and WAV audio formats, in addition to MP3, AAC, Apple Lossless, and AIFF.

Fission 2 costs $32 and requires Mac OS X 10.6 or later. It can be purchased directly from Rogue Amoeba or from the Mac App Store. Owners of the original version can upgrade for 15. A demo is available from the vendor's site.