SC and other video player crash when playing merged MP4 files. It appears that this occurs only with small files.
Sample files (original files from Sony DCC-HX1) MAH08302.MP4 (small = problem) and MAH08306.MP4 are uploaded to the folder 'snipsnip'.
For testing:
Merge 2 times the file MAH08302.MP4 or the files MAH08302.MP4 and MAH08306.MP4 and play the new file: SC will crash.