From my experience, a resolution of 500 sth* is the best for not seeing artifacts, on full screen playback. 200* that you use, I think that it is too small, while 720 would be too high (in order to fit in 1cd) Whenever I had a problem with these blocks, I had to play with the resolution. If not 544*, then 504* or 520*... Start with multiplying with 32, and if it doesn't work, look for multiplying with 16 or 8.