Ok so I want to start using linux.I decided I wanted to use knoppix to start off with.I am having a little trouble getting it to work.I downloaded the iso file named
KNOPPIX_V3.8.2-2005-05-05-EN.It says its a winrar file,I leave it compressed.I am using nero version 6.I dont have a dvd burner so I am trying to use Cd-r.My problom is when I go to make a bootable data disk it says A:Unknown size.So I tryed record now.I made a data disk with nothing but KNOPPIX_V3.8.2-2005-05-05-EN on it.It put it in and restarted.Nothing, it says boot from disk after post and then just starts windows like normal.My sytem specs are:

DFI lanparty NF3 250GB
AMD64 3400+
1024GB Corsair XMS
Evaga 6800GT AGP
80 GB HDD

Could this be the problom???Whats going on here.I REALLY want to use linux and I just cant do it so I am going out of my mind.Please help me.Thanks....