I always get this error and itís impossible to author my DVD with Architect 4.0: WARNING: An error occurred while writing a file. Invalid data was encountered when processing an MPEG file. These are the steps I take: after editing my movie in Final Cut Pro I then export the movie into QuickTime format, the resulting .mov I compress using a compressor to mpg2 (mpeg-2?) format. The resulting audio file (.aiff) I convert to wave (.wav), then this audio file plus the m2v I import into architect 4.0 along with a .PSD file for the DVD menu, no subtitles... I do all that is needed to produce the master DVD... the preview looks fine and there is no problem but when I prepare to burn the DVD in the middle of the process the error appears. I have tried several times with different videos but it is always the same thing and I cannot burn my video. I will appreciate help solving this problem.