What does the recovery disk assistant store?

hello everyone, my questions:
1.what does the recovery disk assistant store?
2.is it necessary to use the recovery disk assistant often or is it enough to use once.
thanks
Fatih.

As it said in the link I posted:
has same capabilities as the built-in Lion Recovery: reinstall Lion, repair the disk using Disk Utility, restore from a Time Machine backup, or browse the web with Safari. This drive can be used in the event you cannot start your computer with the built-in Recovery HD, or you have replaced the hard drive with a new one that does not have Mac OS X installed.
And here it is explained further:
http://support.apple.com/kb/HT4718
It stores some tools (Disk Utility) to repair your drive and lets you connect to the app store to re-download the OS or restore it from a Time Machine backup. That's it.
And it will re-install or restore your system (OS), it will not touch your files. However,
NOTE: before doing anything like that, it is wise to have a complete backup - things can happen.

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