Hi MrC,
just found an issue which only happens in FFmpeg Safe Mode when using a source file with 4:2:2 chroma subsampling. Please have a look here:
https://sourceforge.net/p/dvdstyler/...19525d5b/#9da1
FFmpeg will create an m2v file with 4:2:2 subsampling which is not DVD compliant. To avoid this the command line for FFmpeg Safe Mode must contain the parameter "-pix_fmt yuv420p".
In normal modes (using AviSynth) there is no problem because the source is always converted to YV12.
Cheers
manolito