Most of the AVI video files included on the AmigaOS3.9 CD seems to have the following details:
Video:
Codec = Cinepak (cvid)
Size = 320 x 240
FPS = 20
Audio:
Codec = PCM (Uncompressed)
Rate = 22050Hz
Channels = 1 (Mono)
Sample = 16 bit
Have in mind that although the width is 320 pixels, the height varies in order to preserve aspect ratio.
This could at least be a starting point.
