by niomo 

The open source operating system, Linux , has been exploding in popularity for good reasons. It’s got stability, it’s light on the computer’s resources, several great GUIs are available for it, and you can get it already packaged with a good selection of great applications, and there are thousands of other powerful applications available and in development. Also, you can get several distributions of it absolutely free.

 MainActor is available in a version for Microsoft Windows as well, and your purchase of the product key will unlock both, which can be a plus for those working on multiple platforms. You can also download versions that are optimized for SuSE 9.2 Linux , or Mandriva Linux . It's interesting that MainConcept released MainActor 5.5 for Linux before it had released a 5.5 update for Microsoft Windows. The trial download is fully functional, except that it adds a watermark to the video output. You can then decide if you like it and purchase the product key for $199. MainConcept states that they cannot offer a GNU license due to the fact that some of the code for their proprietary commercial encoding products is also incorporated in the code of MainActor.

 The MainActor 5.2.1 package downloaded and installed just fine on Mandrake Linux 10.1.

fonte:digitalproducer.com