Hopefully , This will help eliminate alot of heart ache that I went thru learning to burn. Many of us are downloading linux from mirrors onto a windows computer and then burning the cd to find it does not work. The download part is not always the problom ! There should be a file in the program from the mirror called MD5 or MD5 check sum. This is a varifacation key. To check this key you can use a free program called md5 checksummer Once the program is downloaded use this program to generate a md5 and it should match the one in the file from the download site of the program if it does not then it was corrupted during the download. In this case delete the program files and try again sometimes the files on the mirror are corrupted themselves . Also run a virus scan on the files. Second is the burn , Do Not pull up the file and copy to cd on windows , this will leave you a perfectly good drink coaster. Instead start your cd burning program and then select burn ISO or exact copy from disk. And then select the program ISO you downloaded also use a slower burn speed for this file to help ensure it is not corrupted during the burn. Then use the md5 program to verify the cd as you did before. This is alot of work but it will be worth it in the long run.