How to play burned PS2 games(or iso) on BC PS3?

Hello everyone

my PS3: BC 20G Japan model(launch?) with CFW 3.55 Kmeaw


I have read a lot of threads and found that:

1, Cobra works
2, Swap Magic works(not so good?)
3, nXMB works?

Does nXMB work in CFW 3.55?

Or any other ways to play burned or iso PS2 games without buying Cobra or Swap Magic?

Thanks!