I always convert shows off of my tuner card using
CBR 2300 kb/sec MPEG-1.

When I watch it, the time showing of the clip is always
about double what it actually is (i.e. the counter
on the DVD player shows 30 minutes for the clip when
it is actually only 15 minutes that I captured)

Is this because my bitrate is double what the standard VCD bitrate is?