I suppose you would call it a recovery disk, I have only used it once and it re installed XP. I was never sure if it was the full version of XP as I had the PC made for me by a company that specialises in music PC's, and i know how people can rip you off by only installing THEIR version of windows and not actually giving you a copy.
On this note, I have actually tried messing about with the Boot up sequence in my BIOS by changing it from A to CD to Hard drive and the only one that ever got me anywhere is the floppy...to the A: prompt.
When I set the BIOS to check the CD first OR the Hard Drive first it came up with a screen with a small box in the middle asking me which device did I want to boot from and listed the three options (floppy, Hard drive,CD) and every time I picked one that wasnt the floppy it would just go back to the same screen with the box in it....any ideas?