some questions from a newbie

[rawkus]

i've got a chipped ps2. i am using the origa 1.02 with the dvd region x to boot backups.
making backups from cd isn't really hard, while making dvd-rips is tricky for sure. i am able to manage both things.

now my questions:

i am going to buy a dvd-burner (a colleague of mine wants to sell his "old" one) unfortunately i don't know which kind of writer it is.

1)will i be able to do 1:1 copies from dvd games or do i have to patch them somehow?

2) will i be able to boot them with the origa 1.02 an the dvd-region x ???

3) a friend of mine is using the neo 2.2 and the latest action replay version. is it possible to him to boot dvd-backups ???

4) which one is the best dvd-backup tool ???

5) i heard that most of the ps2-dvd games are single-layed.
are there any games on dvd which can't be backuped ???

i would be glad, if someone could help me.

thankx !!!