Now comes the downside. As I used Clip-Snipe more and more, I began to notice that it wasn't cutting the mpeg exactly where I wanted it to. It seemed to be a couple of frames off. I suspected that I knew what the problem was. mpeg has "keyframes" that form the foundation of the next several frames. Cutting an mpeg video between keyframes tends to cause flashes on replay. VideoReDo overcomes this by re-encoding just those couple of frames around where you cut.
Here's Clip-Snipe's author's explanation:
Rtvedit (which was writtten by someone else) performs edits based on keyframes. It does allow specifying timecodes to the millisecond, but in reality it jumps to the nearest keyframe for cuts. The reason I chose it was for the smooth transitions between cuts. Mpgtx, another cutter, trimmed closer than rtvedit but always left garish flashes between cuts.So here I am. While I continue to be amazed by the quality of open source software, I think I'm going to have to spring for the $50 license for VideoReDo.
Such is life with freeware - and with apps that depend on other freeware. ;)
While it would be great to have cutting at frames and other high-end options, I would rather pay a few $$$ for commercial software than be bogged down for several months writing an mpeg cutter. Besides, settop DVD recorders are now under $150 and will eventually have quality editors built-in.