DISCWORLD (Sony Psygnosis, for PlayStation, $55) This droll British take on the fantasy role-playing genre has its entertaining moments, and it benefits hugely from the voice talent of Monty Python’s Eric Idle, who manages to inject some personality into even the driest utterances of the inept hero, Rincewind. But the game, first issued as a CD-ROM in 1995, suffers from an indifferent PlayStation translation: If you don’t have a Sony mouse, it’s difficult to navigate through the game using the control pad, and apparently no one thought to enlarge the text so it would be legible from more than a foot away. Most inexcusably, Discworld suffers from some big-time loading delays, a curious failing considering PlayStation’s reputation for speed and power. C