hi guys just wondering if anyone knows answers to these:::

1)do iso mods work on flashed xbox's without having the real disc? if so/not so, do i need to download them to my HDD for them to work?

2)what are the benefits of having a flashed xbox?

3)how often would i need to update my flashed drive in order to have a safe experience on xbox live?

these questions are a little of topic:::

4)in order to download and burn an iso mod for GTA V what burner/disc's would i need?

5)in order to download and burn an iso mod for GTA IV what burner/disc's would i need?

6)could you direct me with a link to purchase some good one's on ebay or something similar?

7)how often would i need to download and burn a new disc for games? after updates to the game/every few months or never?

[color=blue][size=24]please help me the best you can as im in need of mods like super fast cars and such, do not worry i do not want these mods for reason to wreck the gta community like god mode or anything i just want for simple benefits to the games for a few games like gta v and gta iv[/size][/color]