The first revision of the game doesn't work properly on Model 2 Sega Saturn (some little problems in the music). It works properly only on Model 1 Sega Saturn (with bios v1.00 and v1.01). The second revision works on all Sega Saturn.
The Virtua Fighter CG Portrait Series is a series of 10 CDs, released in Japan, each one is starring one of the fighters from the Virtua Fighter game. Each CD consists of a series of high quality pictures coupled with the song assigned to the fighter (the song is also available in the Dancing Shadow album released by Toshiba/EMI in Japan). You can watch the pictures and listen to the song in a standard way (like a slide show) or you can select the karaoke function (lyrics appear at the bottom of the screen).
The 1st volume features Sarah Bryant with the song "Dancing Shadow".