My mom desperately needed a new computer (she's still running XP on a very old Dell), so I decided to pick up one of HP's new TouchSmart 420t machines for her, thinking it'll also be a great machine for Windows 8 when it arrives.
HP, in their infinite wisdom, decided that, among other annoyances, one can only create a single set of recovery media from the included Recovery Media Creation application. Once you make the set, that's it. If you lose the media, or if you want to make a second set on USB instead of DVDs, you're out of luck, short of ordering the media from HP for a price.
If you are stuck in this situation, there is an easy fix,