Not only allocate more memory to bryce, but I would go where your file is saved and rename it. But yeah a Type 2 is not a memory issue, If I'm correct that's a hardware issue error message. So it may be your iMac and not the software. You can also go to Apple's website and look up the error code you keep getting, that should tell ya exactly what's up.

Do atleast one thing a day that scares the hell outta ya!!