Yet another bespoke file format that unsuccessfully attempts to futher the agenda of vendor lock-in: If you are running Windows, you need to purchase PowerISO from poweriso.com , if you are running X86-based Linux flavour, the same people offer a free program to read and write .daa files. Go figure...
.daa files are "Direct Access Archive" files and normally require paid-for software to open them. It is effectively an .iso file with some added bells and whistles, and it compresses the data. A .daa file typically compresses as well as its equivalent .iso file compressed with the BZ2 algorithm.
Solution
Install the poweriso program, which converts a .daa file to a .iso file. On Gentoo and its derivatives, it is done as follows:
Or download the X86-based binary from poweriso.com and put it on your search path:
Then run the program against the offending file to get a usable .iso file.
Type poweriso -? for help
Converting from infile.daa to outfile.iso ... 100%
Mount the resulting .iso file in, say, the /mnt/image directory:
Check the image's content:
Now that you know that your conversion process was successful and you have finished reading the files (.iso files are read-only file systems), remember un-mount the .iso image file:
Use any of a number of free Linux programs to burn the resulting .iso file to a CD or DVD. My favourite CD/DVD writing program? Why, K3B of course!