I have added moldynam.avi which is a 20 second clip (340kbytes approx) which shows a molecular dynamics run. Ignore the science - particularly since the peptide bond rotation energy was an order of magnitude too low! A coordinate set was produced on a stardent Titan and the display was done using software I wrote some years ago for a S.G. Iris - this gives you perspective, depth cuing, lighting models etc. Yesterday morning I adapted this software to generate Windows Bitmap format screen shots after each iteration. These 100*24bit bitmaps were taken straight into Vid4Win and trimmed down to 8 bit (using an optimised pallette). The orginal bitmap files took up about 25Mbytes on Aggies hard disc!!! Jon Maber