Well, VD2 uses avlib-1.vdplugin as decoder, and behind that sits: The very same mother ffmpeg, what else. ;-) Just no lengthy indexing, rather trusting the container- if that hits the correct frame, one may use that. (Here it was not, BTW. DGDecoders are the gold standard here, and they do need indexing.) BTW, if one prefers VD: no image utility needed. VD can export frames: single, sequences, and this can be scripted. And AvsPmod can do that too, with Macros.