I am a complete newbie at this, but here goes. I downloaded an MPEG promo band video from a P2P, which is in the MPEG format. It plays perfectly well on the Windows Media Player. However there are two videos on this download and I only want one of them. I tried to use TMPGEnc Merge And Cut to make two smaller files - I have used this successfully before. This time, it won't work and I keep getting the "Illegal MPEG video stream" error message. I looked through previous forum threads and can't find anything specifically relating to this problem that has helped me. People talk about using Virtual Dub, and although I downloaded it, I can't understand how to work it. Any help would be greatly appreciated, but please bear in mind that I am a TOTAL newbie to video editing and know very little about it, so would need carefully guiding through any instructions you may offer. Many thanks in anticipation.