A newer version of Fission is available.

This download is served from an external site


NOTICE: This link will open a connection to a third-party site. CNET cannot ensure the security of software that is hosted on external sites.

Continue to download

Sponsored Products

Or, Learn More About Fission
Average User Rating stars

out of 12 user reviews

Back to product review

Full user review

  • 4.0 stars

    "Pretty good with one caveat"

    November 15, 2006  |   By ddg.alextek_dotmac


    This review was originally posted on
    Although the 'best of class' in stereo audio editors remains Amadeus II IMJ, Fission is easy to use and has some useful features, most notably the ability to edit MP3 files nondestructively (without recompressing the audio). Problem is, while you can cut, crop, and edit, there is no support for joining or combining files. So, say you recorded a 90 min file in Rogue Amoeba's own Audio Hijack Pro as an MP3 file, with AHP set to create a new file every 30 minutes (to keep file sizes down for easy editing). You cannot edit commercials etc out of the smaller files and then combine them into one. Sorry, but I consider this a significant limitation for an audio editor, one which is not shared by Amadeus, SoundStudio, or even the free Audacity. If you need lossless editing of MP3 or AAC file, you need Fission. If you don't, Amadeus does a lot more (including many useful signal processing tools) for a little less money. Lastly, if you already have Audio Hijack Pro, RA will give you a significant discount that makes Fission a much better value. Bottom line, Fission is a good app with a unique feature (lossless MP3/AAC editing) that needs a file joining capability update ASAP.

    Reply to this review

    Was this review helpful? (0) (0)

Submit your reply


The posting of advertisements, profanity, or personal attacks is prohibited.
Click here to review our site terms of use.


Add Your Review

Log in or create an account to post a review.
You are logged in as . Please submit your review for Fission 1.0.0
Add Your Review

The posting of advertisements, profanity, or personal attacks is prohibited.
Click here to review our site terms of use.

E-mail this review

Submit cancel

Report offensive content

If you believe this comment is offensive or violates the CNET's Site Terms of Use, you can report it below (this will not automatically remove the comment). Once reported, our staff will be notified and the comment will be reviewed.

Select type of offense:

Offensive: Sexually explicit or offensive language
Spam: Advertisements or commercial links
Disruptive posting: Flaming or offending other users
Illegal activities: Promote cracked software, or other illegal content
Submit cancel




If you think this is an error, please contact CNET TechTracker Support for further assistance.


Running Request



Smart Install Software


CNET TechTracker will now automatically install software without requiring further action by you. (Note: This feature automatically accepts associated EULAs and third party applications on your behalf.)

You have selected the following software to Smart Install:

CNET TechTracker will attempt to install this software without interrupting you again. If an application requires manual installation, CNET TechTracker will download the installer and prompt you to take further action.

Proceed with Smart Install?

Confirm Standard Install Cancel