This is the content of the iso directory: MD5SUM README trustix-2.X-YYYYMMDDhhmm.i586.iso trustix-2.X-YYYYMMDDhhmm.src.iso trustix-2.X.i586.iso trustix-2.X.i586.iso.md5 trustix-2.X.src.iso trustix-2.X.src.iso.md5 trustix-2.X.i586.iso is the binary iso installation image, this is the file you are looking for. trustix-2.X.src.iso is the iso image containing the source rpms which the binary rpm packages can be regenerated from. If you are not 100% sure you need these packages, you don't need them. trustix-2.X.i586.iso.md5 and trustix-2.X.src.iso.md5 are pure text files containing only the md5sum the iso file they correspond to. trustix-2.X-YYYYMMDDHHmm.i586.iso and trustix-2.X-YYYYMMDDHHmm.src.iso are symbolic links pointing to trustix-2.X.i586.iso and trustix-2.X.src.iso. They are present for you to see when the images were made. Downloading the symbolic link gives the same end result as downloading the iso itself, except for the name of the file which ends up on your system. The MD5SUM file contains md5sums of all other files in the directory. You can use the md5 checksums in this file to make sure that the content of the downloaded files are not corrupted. More information about how to do this is found on most Linux systems using the command 'man md5sum'. You should use CD burning software which are familiar with the widely used ISO9660 standard. On most Linux systems 'man cdrecord' would be appropriate to gain information about how to burn a CD containing valid content from these images. The Trustix Team