writing to a cd-r

["Lochte, Julianne" <JLochte ThruPoint net>]

I have read the howtos and am in the process of trying to see if my CD-R
works -- It says to use the command mkisofs to format the data to write to
the CD-- but I don't seem to have this utility... can anyone help me to
point me in the correct direction of where I could find it..  
thank you