[Arntonach]

Originally Posted by kommisar

maybe the offset from the .ssc file differs from the .sm?

the whole issue with song timing and note timing used to be a problem

More like .ssc files use more decimal places for numbers, allowing them to be more accurate. As a tradeoff, playing simfiles made in 5 on earlier builds can cause the songs to drift offbeat if they use BPM changes and/or stops.