There's a program, Magic ISO Maker. You just select your cd/dvd drive and he makes an iso out of it!

By the way after my old pc did not connect to the internet i got a new one and i can now burn the games get off here to cd for the old computer.

You can download M$ DOS, M$ Window$ and other M$ muck here, but you'll have to pay for 2 years of M$ supscription to be able to download and use programs.

Other then that, you can use MS DOS 7.1 (search on the web for it) and some linux distributions.

well i guess he got it on ebay