[Frank Urban]

OK. Thanks for all. ffplay works perfect and I think thats all is too much for me and I give it up.

[Frank Urban]

Not to bad 🙂
ffmpeg -i input.mpg -vtag XVID -vcodec libxvid -s 160×128 -aspect 5:4 -r 15 -acodec mp2 -ar 44100 -ac 2 -ab 128k output.avi

ffmpeg -i output.avi
Stream #0:0: Video: mpeg4 (Simple Profile) (XVID / 0x44495658), yuv420p, 160×128 [SAR 1:1 DAR 5:4], 15 tbr, 15 tbn, 15 tbc

now I will get a picture, but the sound start later and the video seemed to be to fast and the video stops after a time with a error message.