According to Linden, the idea came about after studying the console's specifications:
I looked at the Dreamcast specs and thought, “Yeah, this can be done. Absolutely. Let's get in touch with Sega.” We contacted Sega and they liked the idea, they sent us all the technical specifications of the Dreamcast. They lent us a development kit, including a GD-ROM recorder and all the necessary software.
At the same time, Sega did not want to officially participate in order to avoid a lawsuit:
They didn't want the product to be officially licensed by Sega. Because they didn't want to get into a serious legal battle with Sony. They were willing to license the GD-ROM format and allow us to use their libraries, code, etc., if we got permission from Sony. Which didn't happen. Therefore, everything for Bleemcast was written from scratch.
He clarified:
No Sega libraries were used. No Sega code was used. No Sony code was used either. But Sega did not license the hardware interaction technologies, so it provided documentation.
As a result, Bleemcast allowed you to run PlayStation games on Dreamcast, and with improvements, sometimes better than on PlayStation 2. Sony sued, but despite the lack of victories, Bleem closed due to the costs of the processes.
