Example file: http://www.mediafire.com/download/siwkrrsxzlg93f7/test_good.avi
Indexing this file with L-SMASH r859 in MeGUI 2632 results in an AVS showing lots of green images and very choppy video.
Using the latest stable MeGUI 2624 with L-SMASH r804 does not show this error.
I downloaded the latest L-SMASH version r877 and replaced MeGUI's LSMASHSource.dll with it, and now the error doesn't happen anymore.
Thank you very much for your report!