Playing VCD's on Dreamcast: Help Please

Hello. I´m trying to play a VCD in dreamcast, using Gypplayfull1. I crack a DVD, and obtain the mpg file of the film. I can watch this film, so I suppose that it´s well done. I flow the instructions, and extract the Winzip file in a Temp directory. I copy the film to that directory, and burn it with Nero 4.0, setting ISO level 2, Mode 1 (CDROM only, not XA), Joliet filesystem. After all this I load the boot cd, change the disc.... and it wont work. Could anyone help me please????? What am I doing wrong? Do you now another way of watching films on Dreamcast?

Thank you very much