How to convert movie download

I have downloaded a couple of movies and cannot convert them using convertxdvd4. For some reason these movies are in segments totalling about 50. How do I get them into one segment which I hope then will allow me to convert them . Thanks

I will assume these are legal downloads (e.g. public domain).

The segments are probably compressed (e.g. winrar) files. You would need to extract them with WinRar, WinZip or any other compression program that can handle the compression used. It is most likely that the extracted contents is a single file (perhaps a few additional files for subtitles etc.) That file you should be able to convert.

But without further info it is difficult to help…