What a great product! Just installed it and got it up and running. It was pretty straightforward, for the most part, but I did run into some issues with the installation documentation on your site. I followed the instructions on your Windows Installation Guide and was able to get past the issues pretty easily, but some users might find this to be an unnecessary hurdle, so I thought I would take a moment to point out some of these issues, which could be easily addressed with an update to the page and make it even easier for people to get up and running with Razuna.
Install Java - Your documentation correctly mentions the default installation home for Java is in C:\Program Files\Java; however, after installing in the default location I got an error in Tomcat letting me that the space in the JAVA HOME path was not allowed. I uninstalled and reinstalled Java in C:\Java and was able to run Razuna successfully. This was the only actual error I ran into during installation, the following remaining issues were just documentation issues that presented obstacles to getting it installed and running more quickly.
Install Ghostscript - When you visit sourceforge.net/projects/ghostscript/, you will see that Ghostscript is no longer maintained there. The correct location to get the latest version is downloads.ghostscript.com/.
Install ImageMagick - You list the two supported builds with links, but in order to extract these files you need to have already installed 7-zip. You should list this as a requirement (I had already installed this elsewhere as my archive tool of choice but had not installed it on the server in question.) I always get my 7-zip downloads directly from 7-zip.org. Also, for better clarity you should note that when extracting to C:\ffmpeg, the bin folder should be found directly underneath in C:\ffmpeg\bin.
Install DCRaw - The links are broken here; insflug.org seems no longer to be operational. Also note that DCRaw is now included as an executable in the ImageMagick installation. Not certain if Razuna is able to utilize this version, but it does appear to be an official Windows build, so the statement that there is no official Windows build is probably no longer valid either.
Install UFRaw - The link you listed points to a web page, which states in the “Windows For Dummies” section that UFRaw is now a standalone application, and that GIMP installation is no longer requred. Instead users should be able to use the standalone version on sourceforge.net/projects/ufraw/. That said, I am not clear whether you have tested Razuna with this version, whether additional configuration is required, or whether it is supported.
Install MP4Box - According to the developer documentation, MP4Box is part of the GPAC Framework and users should install the latest tested nightly build from this site: gpac.wp.mines-telecom.fr/downloads/gpac-nightly-builds/. As with the other updates above, I have not tested the MP4Box functions in Razuna against this or any other installation, but it appears to be an official location so it would be best to test it in Razuna and note any dependencies or configuration requirements in the documentation.
Launching Razuna - This would be a good section to add, as I was not sure how the Tomcat installation was pre-configured to be hosted. After some searching I found the URL. You should add to this page a section stating that after running startup.bat successfully, users should launch localhost:8080/razuna and make sure they can connect successfully (I found the first launch took several minutes to respond on my ancient computer, but after that it was faster.)
That’s it. Hope you find these edits to be helpful. I will also document some defects and enhancements as I find them. I look forward to making use of Razuna and becoming part of the community (and a contributor to the code if I have the time. 
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