PS2 Mod questions

[jetsetradio4ever]

A'ight, so I was just wondering guys:

Do any of you have experience with the Modbo 4 chip? How is it?

What's the difference between a v4 GAP and a v4 NO GAP, and how do I tell which one I have?

What is the best program to use in ripping games to a PS2 HDD? And, in running games from a HDD, do I need a modchip?

Thanks a bunch, dudes!

[Pete Rittwage]

PS2 mod chips are very difficult to install if you aren't an electronics professional. :(

Also, they aren't needed anymore. You can do a mem-card mod (soft exploit) and play anything from a hard disk, or else run ESR and boot patched DVD's.

[jetsetradio4ever]

I'm mostly looking to run import/backup PSX games. I'd like to run import/backup PS2 games as well, but that's not so much of a priority here, see? The HDD is a secondary thing as well.

Also, to change my question a bit here: Which is better, the Modbo 4 or the Modbo 750?