Below is the code i used to generate a point travelling a parametric plot
a = 5
b = 6
c = 1
plot2d = Show[
Table[ParametricPlot[{a Cos[t] - c, b Sin[t]}, {t, 0, 2 Pi}], {i,
1}], Graphics[{Point[{0, 0}]}], ImageSize -> 500];
ani=Manipulate[
Show[plot2d,
Graphics[{Red, PointSize[0.03],
Point[Table[{a Cos[t] - c, b Sin[t]}, {i, 1}]]}]], {t, 0, 2 Pi}]
When i use the code to export as an avi file;
Export["trial.avi",ani]
I get a 4 second animation, even if i try to alter the frame rate or duration of the animation, i still end up with a 4 second avi file. Is it possible to generate and export this as a 30 second avi file?