I've been wanting a NeoGeo for quite some time now, but I'm not at all familiar with the system. I just have a few questions about it before I consider a future investment.

- Other than the software, what is the difference between the NeoGeo CD unit and regular NeoGeo cart unit?

- Like the Turbo Duo, does the NeoGeo CD unit play both Japanese and American discs, or is some kind of converter required?

- What are the memory capabilities?

- What's a good price for a NeoGeo (regular and CD unit)?

Thanks in advance