You may not be doing anything wrong. Toshiba DVD players
are infamous for NOT supporting CD-R and CD-RW media.
That may not be true on current models, but it definitely
was true in the past. In fact, I heard from a guy who
told me that his Toshiba wouldn't play VCD on any media,
not even commercial ones, and when he called Toshiba,
they admitted the player didn't support it. Also, some
players don't support SVCD at all or require the use
of the MPEGAV subdirectory instead of the MPEG2
subdirectory for the video. I suggest you go to
http://www.vcdhelp.com and see what the DVD Player
Compatibility List says about your player. They also
have guides on making SVCDs if you think you may have
done something wrong. I bet it's an issue with your
player not supporting CD-R.