Videos that individay play correctly on the DVM2 dont play sequentially.
The type of encoding may be different from one video file to the next. Because playlists default to seamless operation, the DVM2 will not stop decoding the video stream between files. If encoding parameters differ significantly from one file to the next, the DVM2 may not be able to interpret the next file in the sequence. Use the 'G' command at the beginning of your playlist to place the DVM2 in segmented mode. To read more about Seamless and Segmented playback modes as well as other playlist commands, take a look at the DVM2 manual