If Nero says your VCD video is too big for a single CD, then you'll have to split it into two parts and burn to two CDs.
VCD has very strict specifications and won't permit reducing the bitrate from 1150Kbps, which might have allowed it to fit on one CD. Also, VCD for PAL is set at 352x288 pixels, so all you can expect with VCD is about 70 minutes play time.
Some DVD players will play an mpeg video without needing it to be in VCD format. If you have one and can stand the extra distortion, you can use a lower bit rate to fit a longer video on a CD. With NeroVision, you'll have to export the video as an MPEG-1 with custom settings and burn as an ordinary data CD. Encoding with 850kbps will fit 90 minutes on a CD. Reducing the format from 352x288 to 320x240 may give fair quality.
Fav quote - "Experience is whatcha don't get 'till ya don't need it no more."
System - Athlon 1.4GHz, Win98, Hauppauge PVR250 receiver and compressor.
Software -Magix Movie Edit Pro 10, Nero 6 + NeroVision Express, Moho 4.61, PSP 8.1, Bryce, Quicktime 6.52 pro, Goldwave 5, DVD-Lab.
Cameras - Panasonic GS9, Canon ES8400V, Canon EOS D20 and Canon A70