Is it true that Rock Band for Playstation 2 ONLY works with the slim version (small one)?What about the large?

May be...

It is because im planning to buy Rock Band, but i have the large one, and i read it only works for the slim version.

No Rock band should work with both the ps2 slim and the bigger ps2! No worries it will work with your console!

Works with both, that's a total lie.

not true!

false