Reinstalling+XP+when+you+have+lost+the+disc

Despite the fact that there are now three newer versions of Windows out, some folks are not ready to give up on Windows XP. However, what happens if your system crashes and you need to reinstall the OS, but you have lost track of your installation disc? Well, if you had been looking ahead, you would have copied the i386 folder to a separate partition on your computer or, better, to a different computer (or two) on your network. Assuming you did not do that, what are your options?
 * Reinstalling XP when you have lost the disc**

Is it possible to use a friend's XP disc or download a copy of XP from the web. The answer is yes - but "possible" and "legal" are two different things. You did at least record your product key Yes? Even if you are willing to buy a new copy, not all the software outlets you will find from a web search are selling legal copies. You can order [|a new boxed copy from Amazon] but are you sure you want to invest that much in an operating system that is a decade behind the times? Maybe it really is time to consider upgrading.