Transferring my torrents to Dvd?

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I need help. I downloaded a converter(DVD Flick) that seemed to work fine(its free, has no watermarks, and allows menu options), but when I went to watch my newly converted DVD it only showed half of each file. Example: I put five 22minute files on a disc that allowed 120min. Total was only 110minutes. Can someone recommend a better converter(free w/ no watermarks), or at least tell me if I may be doing something wrong? Thanks <3