For video files, xine, noatun, and mplayer will play mpeg and avi files. All those programs are available on the Mandrake CDs.
For kazaa equivalent programs, see this: http://www.linuxquestions.org/questi...ighlight=kazaa
For seeing software available, open the Mandrake control center and look under software management to see software available to install. It gives a short description of each package available.
Hope that helps.