I had a little spelling mistake (“Incase” should Be “In case”
There are another 2 ways.
1. Calculate the movie time (cd1 + cd2). If the movie is for exmaple 3 minutes over the capacity of the cd, when encoding the file to a standard vcd format with tmpgENC you can always cut the credits at the end (In most cases it will be couple of minutes).
2. You can join the 2 files to 1 big file and then check if the movie is not over 80 minutes (most of them will be). Why 80 minutes?? Most cd writers doesn’t support yet burning more than 80 minutes per disc. But, in case your cd writer is supporting burning more the 80 minutes (90 or 99) so you have an easier life

Many of the movies wont be more than 99 minutes (1:39:00 hours) so you can burn them in 1 cd as a vcd. But, there is one problem when joining files. After joining them you MUST re-encode again the 1 big file with tmpgENC or any other program to a standard vcd format.
In case your cd writer doesn’t support burning over 80 minutes you have 2 choices:
1. You can use Frightfo0 way (changing the fps of the movie with tmpgENC, but remember: it will decrease the quality of the movie).
2. Just leave the movie as it is (2 cds) and burn the 2 cds as they are to a vcd format.