Digital Foundry: GTA3... on Dreamcast

[Leynos]

JohnVG said:

Plus, DC used GD and not a DVD (way too expensive to be launched with one, in 1998, although it were rumours during years DC could get a DVD reader as an expansion). That means, a 1 disc game has only a maximum of 1 GB, not 4,5GB (the limit in a single layer DVD). So... DC version probably would got its radio stations cropped (in number, or at least, in extension) to save space in the disc. Or its quality would had been too compromised.

It wasn't a rumor. https://segaretro.org/Dreamcast_DVD_Player

There was also a planned Cable box and MP3 player shown. As well as linking with cell phones and smart watches of the time. Karoke and Zip Drives. SEGA wanted the DC wo thave 3 things. DVD. Modem. HDD. Only had enough money for one.